gov or. Le Chatelier's principle is commonly observed in chemical reactions. You could not isolated going once ebook deposit or library or borrowing from your friends to open them. (g) according to the following chemical equation. On balance, both forward and backward reactions still occur, but concentrations of K (A), (B), (C) and (D) remain constant. The quantitative preparation of several solutions and subsequent measurement of the solution absorbance using a. 277 0. What is the rate law for the forward and the reverse reaction if each of the reactions below is an elementary step a. 8 pages 20212022 None. The density of H2SO4 is 1. Objectives 1. 1 Expert Answer. Given such G values, which of the following is equivalent to the ratio of the K e q value of a covalent bond to that of a hydrogen bond. Pressure, temperature and concentration changes are all examples of stresses that. CoCl4(-2) is a blue ion in solution, and Co(H2O)62 is a pink ion in aqueous solution. Experiment 1 Chemical Equilibria and Le Ch&226;teliers Principle. Chemical Equilibrium All chemical reactions eventually reach a state in which the rate of the reaction in the forward direction is equal to the rate of the reaction in the reverse direction. Part A 1) System studied is the equilibrium reaction Fe3 SCN- Fe (SCN)2 2) According to Le Chatelier&39;s principle, if a system under equilibrium is disturbed, the system will reorganize itself to resist against the change. Equilibrium cannot be established between the liquid and the gas phase if the top is removed from the bottle because the system is not closed; one of the components of the equilibrium, the Br 2 vapor, would escape from the bottle until all liquid disappeared. Follow this course. Lab 2 Properties of Systems in Chemical Equilibrium The two key purposes of this lab are 1) To observe how systems in equilibrium respond to stress by increasing or decreasing the concentration of one component; increasing the volume of a solution; or changing the temperature of the system; and 2) To experimentally determine K sp for PbCl 2,. Consider the following equilibrium Baso4 (s)Ba (ag)SO,2 (a);, AHo In which direction will the equilibrium shift if H,so, is added. 8C 1. Nov 13, 2022 A chemical reaction is in equilibrium when there is no tendency for the quantities of reactants and products to change. Major lab report chem 101 experiment chemical equilibrium and le principle october 30, 2017 data and calculations when crystals are dissolved in 3ml of. Consider the following equilibrium Baso4 (s)Ba (ag)SO,2 (a);, AHo In which direction will the equilibrium shift if H,so, is. 00 106 17. April 27th, 2018 - Chemical Equilibrium and Le Chateliers Principle Lab Report Answer in terms of changes to the Write the chemical reaction for this equilibrium Experiment 18 Spectrophotometric Equilibrium Constant. Congo Red (CR C R) is a pH indicator which has a blue color in its acidic form and red color in its basic form. Le Ch&226;teliers Principle. Pre-lab Questions Does it matter what initial concentration of reactants and products are used to; determine the equilibrium constant. Chemical Equilibrium Reversible Reactions Lab Report Answers The Definitive Guide to Resistant Starch Mark s Daily Apple March 26th, 2014 - Our gut bacteria need to eat and resistant starch may be the best way to feed them Learn all about how it works here. students understand an equilibrium system by using a physical equilibrium model. Place the test tube in a beaker of ice water and leave it for about 10 minutes. com Subject Chemical Equilibrium Le Chatelier Lab Report Answers Keywords answers,chemical,lab,report,equilibrium,chatelier,le Created Date 3212023 52053 PM. The density of H2SO4 is 1. 0 mL of water to the Reactants cylinder, cylinder A (using an eyedropper). We are vaccinating a. This simulation is best used with teacher guidance because it presents an analogy of chemical reactions. If one is able to measure these concentrations, the value of the equilibrium constant can be calculated. Chemical Equilibrium Le Chtelier&39;s Principle Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. Chemical is added to a reversible reaction at equilibrium. Equations 11. to determine equilibrium constant for the reaction of iron (III) with thiocyanic acid to form iron (III) thiocyanate complex and hydrogen ions. This has been accomplished since the beginning of photography through the use of a "fixer" sodium thiosulfate (Na2S2O3) (N a 2 S 2 O 3). Chemical equilibrium can be attained whether the reaction begins with all reactants and no products, all products and no reactants, or some of both. Students also viewed. Chemical Equilibrium Lab Report Answers equilibrium straw lab answers Bing PDFsDirNN com. Abstract The purpose of this lab is to understand chemical equilibrium and use concentration to experimentally determine the equilibrium constant, Kc, of the reaction. Worksheet 16 - Equilibrium Chemical equilibrium is the state where the concentrations of all reactants and products remain constant with time. Part of. Solution Vol. reaction shiftsreactant (add heat) c. At equilibrium both the forward and backward reactions are still occurring, but the concentrations of A, B, C, and D remain. 128 M; (b) The assumption that x is negligibly small compared to 0. and products that are still present even after the reaction reaches equilibrium. Chemical Equilibrium Three Stooges in Chemical Reactions. chem113l determination of an equilibrium constant pre lab video. The lab handout is attached below in both Word and PDF format. Research Questions. Safety and waste management are covered in greater detail, and many pre-lab and post-lab questions. When the forward rate and the reverse rate are equal, the reaction is at equilibrium (dynamic equilibrium), and all reactants as well as. Chemistry questions and answers; Chemical Equilibrium 4-1 Background Chemical equilibrium is the state reached by a reaction mixture when the rates of the forward and reverse reactions have become equal (1). As part of your lab report answer each question below for both Part I and Part II above 1. equation for experiment. Exam 2008, questions and answers - General Chemistry II Chemical Processes; Curated Quiz 2 - yes; Module 1 Examples - Dr. 0 mL of water to the Reactants cylinder, cylinder A (using an eyedropper). Chemical Equilibrium. Laboratory 1 Chemical Equilibrium Colby College. Consider the following equilibrium Baso4 (s)Ba (ag)SO,2 (a);, AHo In which direction will the equilibrium shift if H,so, is. Access study documents, get answers to your study questions, and connect with real tutors for CHM 115 General Chemistry II at Grand. Determination of an Equilibrium Constant for the Iron (III) thiocynate Reaction Pre-lab Assignment Before coming to lab Read the lab thoroughly. (g) according to the following chemical equation. Exothermic because the decrease in temperature caused the solution to become darker in color, indicating a forward shi. reaction shiftsincreases rate of both reactions equally. Chemical Equilibrium Theory Class 11 Chemistry. ) The lab is a pretty basic look at causing disruptions to an equilibrium and making predictions - and then observations - based on Le Chtellier&x27;s Principle. Lab 2 Properties of Systems in Chemical Equilibrium The two key purposes of this lab are 1) To observe how systems in equilibrium respond to stress by increasing or decreasing the concentration of one component; increasing the volume of a solution; or changing the temperature of the system; and 2) To experimentally determine K sp for PbCl 2,. A given chemical reaction system is defined by a balanced net chemical equation which is conventionally written as. After each stepwise addition of HCl, the simulation provides the concentrations. In this case the consumers are the beneficiaries over the producers. Post lab quiz will be available from 02182023 at 12 am. The Eleventh Edition has been revised to correlate more tightly with BrownLeMayBursten's Chemistry The Central Science, 11e and now features a guide on how to keep a lab report notebook. Exam 2 Worksheet Answers 1 Exam 2 Worksheet Answers Chemistry 104 Chapter 15 Chemical Equilibrium 1. 00 x 10-6 mol 1. Chemical Equation Co (H2O)62 (aq) 4 Cl- (aq) CoCl4-2 (aq) 6 H2O (l) Experiment Part 1 Concentrated HCl is added stepwise to a given volume of Co (H2O)62 of known concentration. A covalent bond has a standard Gibbs free energy of 400 kJmol, while the hydrogen bond and van der Waals forces have substantially lower values, respectively 25 and 5 kJmol. Access study documents, get answers to your study questions, and connect with real tutors for CHM 115 General Chemistry II at Grand. C - Methyl Red HMR (aq) H (aq) MR (aq). Examples of stress are an increase or. 3 represent the same chemical reaction system in which the roles of the components are reversed, and both yield the same mixture of components when the change is completed. in the middle of them is this Chemical Equilibrium Lab Report Answers Pdf Pdf that can be your partner. Chemical Equilibrium Reversible Reactions Lab Report Answers Port Manteaux Word Maker OneLook Dictionary Search June 23rd, 2018 - Port Manteaux churns out silly new words when you feed it an idea or two Enter a word or two above and you ll get back a bunch of portmanteaux created by jamming together words that are conceptually related. Chemical Equilibrium Worksheet - Cerritos College. This is why you remain in the best website to see the unbelievable ebook to have. In this laboratory you will find the equilibrium constant for the reaction (deep-red, orange). Calculate the molar concentrations of. In terms of molar concentrations, write the equilibrium-constant expression for the decomposition of AsF5(g). Lab 2 Properties of Systems in Chemical Equilibrium The two key purposes of this lab are 1) To observe how systems in equilibrium respond to stress by increasing or decreasing the concentration of one component; increasing the volume of a solution; or changing the temperature of the system; and 2) To experimentally determine K sp for. 8 pages 20212022 None. BONUS Lab Techniques and Procedures. Question Chemical Equilibrium 4-1 Background Chemical equilibrium is the state reached by a reaction mixture when the rates of the forward and reverse reactions have become equal (1). Chemical Equilibrium lab report. Report submitted to Chemistry Faculty. Chemicals Chemical Name. All chemical reactions eventually reach a state in which the rate of the reaction in the forward direction is equal to the rate of the reaction in the reverse direction. Learn more Vaccines, Boosters & Additional Doses Testing Patient Care Visitor Guidelines Coronavirus Email AlertsFind more COVID-19 testing locations on Maryland. The equilibrium concentrations of reactants and products may vary, but the value for K c remains the same. 1-3 To prepare the experiment, simply mix about 0. The equilibrium constant for equation 4 can be expressed using the concentrations of the three components (5) K . Results 1 - 24 of 155. (Think about how this will change the concentration of the substances involved in the equilibrium. change over time. Objective The objective of this lab was to determine K for an equilibrium based on experimental data, design a series of experiments that demonstrate Le Chateliers Principle, and write chemical equations representing shifts in equilibrium based on experimental observations. BONUS Mathematical Operations and Functions. such as industrial processes and environmental chemistry. Grand Canyon University. 967 M and NO. Molar Mass (gmol) Hazards Reference Link. Brown 2019-11-12 This manual contains 43 nely tuned, self-contained experiments chosen to introduce basic lab. Chocolate brown is second, followed by yellow labs. Submit electronically to the Loud. Post-Lab Questions (Answer them in post lab quiz, questions are given in update document). Chemical reactions are equilibrium reactions. iron (III) and thiocyanic acid. 1 Expert Answer. But for 2. lab techniques and to illustrate core chemical principles. Submit electronically to the Loud Cloud assignment box. Chemical equilibrium Ianatus Syarifah Academia edu. History of chemistry Wikipedia. increases the concentration of OH-. reaction in which Fe3 ions react with SCN- to form FeSCN2. Chemical equilibrium is a reaction in chemical equilibrium when the rate of the forward reaction is equals to the rate of the reverse reaction. Guidelines - READ BERANS MANUAL and DO PRE-LAB IN FULL- - PREPARE A REPORT THAT INCLUDES PART A on copper ammonia complex formation and shift an equilibrium with HCl; PART D and F on cobalt ion coordination equilibrium; and the last part of the report should be based on. A basic introduction to equilibrium constants should be given before hand including the law of mass action, reaction. Exothermic because the decrease in temperature caused the solution to become darker in color, indicating a forward shi. CoCl4(-2) is a blue ion in solution, and Co(H2O)62 is a pink ion in aqueous solution. When the forward rate and the reverse rate are equal, the reaction is at equilibrium (dynamic equilibrium), and all reactants as well as. 8 g cm3 at 25C. June 22nd, 2018 - Answers to be of 100 words each 8 The chemical reactions of Slow and fast changes reversible and irreversible reactions exothermic and endothermic CHEMISTRY CEA June 21st, 2018 - to use pracs that investigate the concept of equilibrium for the summary report reversible reactions in chemical reactions Video World of Chemistry. 2 eq 1. Chemistry questions and answers; Chemical Equilibrium 4-1 Background Chemical equilibrium is the state reached by a reaction mixture when the rates of the forward and reverse reactions have become equal (1). The cobalt reactant is blue and the cobalt product is pink. Verified Solution. These equilibrium based concept tests can be used as part. What is the rate law for the forward and the reverse reaction if each of the reactions below is an elementary step a. study of properties of laminar steady state flames as a function of properties of their chemical components and spectra of alkali metal-organic halide flames. Write the equilibrium constant "K"expression for the above reversible reaction 171111171TTTIIIIIIII b. chemical equilibrium pre lab questions and answers. Understanding the factors that affect chemical equilibrium has important applications in the real world. DETERMINATION OF THE EQUILIBRIUM CONSTANT FOR A CHEMICAL REACTION INTRODUCTION When chemical substances react, the reaction typically does not go to completion. Figure 8. Lab 1 Use Excel For Graphing. System at equilibrium Exothermic. Chemical Equilibrium Lab Report Include the answers to the following prelab questions in the lab report 1. This is why you remain in the best website to see the unbelievable ebook to have. provided by the in troduction within the virtual lab activity. Jim Hebden s Chemistry 12 Labs BCScTA. 03 so the system is not at equilibrium. 0 d 3. Chemical Equilibrium Pre Lab Questions And Answers Chemical Equilibrium Pre Lab Questions And Answers Solved Chemical Equilibrium Pre lab Quiz Please Help. which statement about a chemical equilibrium is correct forward and reverse reactions happen at equal rates. At equilibrium, the quantities of everything present in the mixture remain constant, although the reactions are still continuing. Chemical Equilibrium All chemical reactions eventually reach a state in which the rate of the reaction in the forward direction is equal to the rate of the reaction in the reverse direction. 5 pts Question 1 While this lab is concerned with the equilibrium of a specific class of chemical reactions, acid-base reactions, the concept of equilibrium extends to all chemical reactions. lab techniques and to illustrate core chemical principles. step 1 concentration of Fe3 conc. Fe3 (aq) HSCN (aq) Fe (SCN)2 (aq) H (aq) As the concentrations of the products increase, the two species can react reversely to form. See more. Background Not all reactions go to completion, or use up all of one of the reactants. Abstract The purpose of this lab is to understand chemical equilibrium and use concentration to experimentally determine the equilibrium constant, Kc, of the reaction. B r 2 (l) B r 2 (a q) are given in the following table. Problem Set KE14 ICE Tables 1. As this Chemistry 12 Equilibrium Lab Report Answers Pdf, it ends in the works subconscious one of the favored books Chemistry 12 Equilibrium Lab Report Answers Pdf collections that we have. Modern Chemistry Section 2 Chemical Equilibrium Answers Chem1 Online Textbook Main Menu May 8th, 2018 - beginner First Semester 1 What is Chemistry all about anyway Chemistry in a nutshell The major concepts and ideas of chemical science and a look at some of the major currents of modern Chemistry Final Answers Science NUMERICANA. Predict what effect removing chloride ions will have on the equilibrium. 0000195 K Consult your textbook to see why Keq does not have. Laboratory Experiments for Chemistry - Theodore E. Equilibrium Lab Le Chtelier&39;s Principle Objective Observe chemical reactions in equilibrium Observe the effects of stresses on a system in. Chemical Equilibrium Le Chtelier&39;s Principle Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. Chemical Equilibrium Lab Report Answers Pdf Getting the books Chemical Equilibrium Lab Report Answers Pdf now is not type of inspiring means. EXPERIMENT 5 - CHEMICAL EQUILIBRIUM. 00 mL of your 2. Determine the concentration of each reactant at equilibrium. Wilbraham 2010-04-02. Chemical Equilibrium Pre Lab Questions And Answers Chemical Equilibrium Pre Lab Questions And Answers Solved Chemical Equilibrium Pre lab Quiz Please Help. Expert Answer. KEY MATH EQUATIONS 1. Chemical Equilibrium For any reaction at a given temperature, K c has a certain value. Chemical Equilibrium Chemistry Study Guide Answers Atoms First An Introduction to Chemistry May 6th, 2018 - Atoms First Version of An Introduction to Chemistry by Mark Bishop If you use this Internet site regularly and if you don t feel the need for the printed textbook I ask that you pay 20 for using the electronic text and tools on this site. 0810 4. Chem 14 1 Expt 9 Chem Lab Report. Type all data, descriptions, results, sample equations, and calculations. removing certain parts of the equation, the reaction can either be shifted to the left or to the right. Journal of Chemical Education, 88 (5), 637639. The purpose of this lab is to calculate Kc, the equilibrium constant of a. When Fe 3 and SCN are. Use the Le Chteliers Soda lab next to allow your students to observe how the equilibrium of a chemical reaction is affected when a change in pressure, temperature, and concentration is applied to the system. 277 0. peach fuzz pussy picture, protection paladin talents dragonflight
Chemical Equilibrium Lab. . Chemical equilibrium lab answers
In these chemical. Laboratory Experiments for Chemistry - Theodore E. 345 Absorbance of standard (Trial 5) Temperature 0. lab report 10 chemical equilibrium basic lab studocu. Chemical Equilibrium Pre Lab Questions Answers tmolly de. Chatelier&39;s principle" or "The Equilibrium Law") states that when a system experiences a disturbance (such as concentration, temperature, or pressure changes), it will respond to restore a new equilibrium state. The equilibrium constant for a solubility equilibrium is called the solubility product, and is given the symbol Ksp. It accelerates the reaction rates of a mixture. Find the average equilibrium constant between the five sample solutions in excel. But for 2. Version 42-0166-00-02 Review the safety materials and wear goggles when working with chemicals. Briefly state Le Chtelier&39;s principle. 967 M and NO. LeChatelier's Principle says that an equilibrium will shift to compensate for any added stress. The three letters, ICE stand for Initial, Change and Equilibrium. Jim Hebden s Chemistry 12 Labs BCScTA. Consider the following reaction H 2O CO H 2 CO 2 Suppose you were to start the reaction with some amount of each reactant (and no H 2 or CO 2). Chemical equilibrium can be attained whether the reaction begins with all reactants and no products, all products and no reactants, or some of both. Getting the books Chemical Equilibrium Pre Lab Questions And Answers Pdf now is not type of inspiring means. reaction shiftsproduct (increase rate) d. These equilibrium based concept tests can be used as part of in-class activities to help students reason about equilibrium concepts. FeSCN 2 Fe 3 SCN In order to calculate the equilibrium constant, one must simultaneously determine the concentrations of all three of the components. You can summarize the rest from the virtual lab. As nitric acid is added to the potassium chromate solution, the yellow colour turns to orange. As this Chemistry 12 Equilibrium Lab Report Answers Pdf, it ends in the works subconscious one of the favored books Chemistry 12 Equilibrium Lab Report Answers Pdf collections that we have. The experiment is extremely easy to prepare, and avoids the use of concentrated acid that is used in many equilibrium experiments. Part of. 0 M and 0. Describe the overall objective and make a hypothesis. 12 M the ratio is 2 (0. In this type, the reactants and the products of chemical equilibrium are present in different phases. A covalent bond has a standard Gibbs free energy of 400 kJmol, while the hydrogen bond and van der Waals forces have substantially lower values, respectively 25 and 5 kJmol. As this Chemistry 12 Equilibrium Lab Report Answers Pdf, it ends in the works subconscious one of the favored books Chemistry 12 Equilibrium Lab Report Answers Pdf collections that we have. June 22nd, 2018 - Answers to be of 100 words each 8 The chemical reactions of Slow and fast changes reversible and irreversible reactions exothermic and endothermic CHEMISTRY CEA June 21st, 2018 - to use pracs that investigate the concept of equilibrium for the summary report reversible reactions in chemical reactions Video World of Chemistry. See more. 8C Some bubbling 2. Fe 3aq SCN -aq FeSCN 2aq. What reactions are likely to occur. 1) reactants products. Does it matter what initial concentration of reactant and products are used to determine the equilibrium constant Answer No, it does not matter. Chemistry 30 Assignment Answer Keys. Every chemical equilibrium can be characterized by an equilibrium constant, known as K eq. April 25th, 2018 - 07 04 equilibrium lab report answers Solutions Chemical Equilibrium equilibrium straw lab answers Bing Laboratory 1 Chemical Equilibrium Colby College May 3rd, 2018 - Laboratory 1 Chemical Equilibrium 1 For this first lab report we will write the To summarize the experiment answer the. Exercise 9. 9 Lab Report 8 Determination of the Heat of Dissolution of a Salt Remedial Activities for Secondary V Chemistry Mandatory assignments 83 (6) Lab Report 10 Chemical Equilibrium University Dawson College Course Remedial Activities for Secondary V Chemistry (202-001-50) 27 Documents Info Document continues below Discover more from. Chemical Equilibrium Lab Report Include the answers to the following prelab questions in the lab report 1. Chemical Equilibrium Pre Lab Questions Answers tmolly de. Introduction The purpose of this lab is to observe the chemical equilibria between the reactionof Fe3 ions and SCN- ions by looking at. Answer the pre-lab questions that appear at the end of this lab exercise. Chemical Equilibrium Worksheet - Cerritos College. The Virtual Lab is an online simulation of a chemistry lab. Adding KSCN Add. reaction in which Fe3 ions react with SCN- to form FeSCN2. 12M) (2. Experimental data on the system. Chemical Equilibrium Worksheet - Cerritos College. 00 x 10-5 mol 3. The three ways that affect this change in equilibrium include Changing concentrations by adding or removing products or reactants to the reaction vessel. NaOH added to the System turns dark pinkred NaOH dissociates into Na and OH-, system therefore the addition of NaOH. , show that the total pressure is related to the equilibrium pressure by the following equation P T K p P I 2 P I 2. In order for the system to return to equilibrium it must form more N2O4 and, in the process, consume NO2. CuSO ng) 3. CO2 (g) C. The three ways that affect this change in equilibrium include Changing concentrations by adding or removing products or reactants to the reaction vessel. students understand an equilibrium system by using a physical equilibrium model. By the end of this lab, students should be able to Explain the concept of chemical equilibrium. 00 x 10-5 mol 3. Black is the most popular color for these dogs. Part of. History of chemistry Wikipedia. Calculations maybe done by hand but must be inserted as an image that meets the requirements posted. Example &92;(&92;PageIndex2&92;) shows one way to do this. )What is LeChatelier&x27;s Principle Chatelier&x27;s principle" or "The Equilibrium Law") states that when a system experiences a disturbance (such as concentration, temperature, or pressure changes), it will respond to restore a new equilibrium state. chemical equilibrium pre lab questions and answers. Le Ch&226;teliers Principle. Experiment 1 Chemical Equilibria and Le Ch&226;teliers Principle. 17 Solubility product of potassium hydrogen tartrate; Experiment 14 Formal Report for pH and pH titration; Lab report exp. chemical equilibrium pre lab questions and answers. Pre-Laboratory Assignment Experiment 7 Chemical Equilibrium Finding Kc Name ROSA AQUINO 1. Wilbraham 2010-04-02. In Part I, you will add HCl which is a direct source of Hions. Thus, more liquid would evaporate than can condense back from the gas phase to the. Chemical Equilibrium Reversible Reactions Lab Report Answers Port Manteaux Word Maker OneLook Dictionary Search June 23rd, 2018 - Port Manteaux churns out silly new words when you feed it an idea or two Enter a word or two above and you ll get back a bunch of portmanteaux created by jamming together words that are conceptually related. Consider the following reaction H 2O CO H 2 CO 2 Suppose you were to start the reaction with some amount of each reactant (and no H 2 or CO 2). Acid Base Lab Report; Lab report Solubility product of potassium hydrogen tartrate; Lab Experiment 21 - Lab report The Thermodynamics of the Borax Solubility; Lab Experiment 12 - Lab report Chemical Kinetics; Lab Experiment 15 - Lab report Equilibrium And Le Chteleiers Principle; Equilibrium and Le Chatlier&39;s Principle Lab Report. w ebpages ochemlab servicesChem 111 LabMSDS 111Gases MSDSAlka Seltzer MSDS. 03 so the system is not at equilibrium. Write down the equilibrium equation you are investigating using the information provided by the introduction within the virtual lab activity; Equilibrium reaction Co(H2O)62 4Cl > CoCl42. chemical equilibrium pre lab questions and answers. The cobalt reactant is blue and the cobalt product is pink. A dynamic equilibrium occurs when you have a reversible reaction in a closed system. 0 M of NaOH was added to the iron(III) thiocyanate equilibrium system, the solutions color changed from orange to yellow and the equilibrium shifted to the left. Most likely you have knowledge that, people have look numerous time for their favorite books next this Chemical Equilibrium Ap Central The College Board Pdf, but stop stirring in harmful downloads. Laboratory 1 Chemical Equilibrium Colby College. . is metro pcs down