CHEM 103 Module 1 Exam Questions and Answers | CHEM 103 Lab Exam 2 | Lab Exam 1 | CHEM 103 Module 1 to 6 Exam | CHEM 103 Lab Exam 3 | Lab Exam 4 | Lab Exam 5 | Lab Exam 6 | CHEM 103 Lab Exam 8 | CHEM 103 Module 2 Exam and CHEM 103 Module 3 Exam Portage

CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup with a lid and the heat absorbed is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe th...

CHEM 103 Module 2 Exam (Portage Learning) Show the calculation of the molecular weight for the following compounds, reporting your answer to 2 places after the decimal. 1. Al (SO ) 2. C H NOBr 2 4 3 7 5 1. Al (SO ) Al = 2 x 26.98 = 53.96 S = 3 x 32.07 = 96.21 O = 12 x 16.00 = 192 2 4 3 M2...

CHEM 103 Lab Exam 4 – Portage Learning. How much heat was gained by the tap water if the specific heat of water is 4.18 J/K-g? 2. (3 points) In one experiment in the video, HCl was mixed with another substance. What other substance was mixed with HCl? 3. (4 points) One student conducts an acid...

CHEM 103 Lab Exam 5 – Portage Learning . According to Boyle’s law, as the volume of a gas decreases, the pressure _________. 3. (6 points) A sample of gas occupies a volume of 10.5 L when the pressure is 14.3 psi. Use Boyle’s Law to calculate the volume (L) when the pressure is decreased t...

CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Using the following information, do the conversions shown below, showing all work: 1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts 1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints kilo (= 1000) milli (= 1/1000) cen...

CHEM 103 Lab Exam 1 – Portage Learning. Which of the volume-measuring devices was determined to be least accurate in the volume measurement experiment? 2. What was the calculated volume for the pipet in the volume measurement experiment? 3. Water at 22.5oC has a density of 0.99766 g/ml. A 10.3...

CHEM 103 Lab Exam 2 – Portage Learning. A decomposition reaction has more products than reactants. exothermic Correct! decomposition

CHEM 103 Lab Exam 3 – Portage Learning. A 1.1000 gram hydrate sample chosen from Na2CO3∙10H2O, AlCl3∙6H2O, MgCl2∙6H2O and BaCl2∙2H2O was heated and found to lose 0.5841 gram of H2O. (1) Show the calculation of the % H2O in the unknown hydrate sample. (2) Show the calculation of the % H2...

CHEM 103 Lab Exam 6 – Portage Learning. Bonds within a molecule are called intra-molecular bonds. Non-polar (type) compounds are insoluble in water

CHEM 103 Lab Exam 8 – Portage Learning. Why was warming data used for estimating the freezing/melting point of the cyclohexane? 3. (3 points) How much of the cyclohexane solvent was placed in the test? 1.) molarity 2.) It is considered reliable. It is a dependable predicator of the freezing/m...

CHEM 103 Module 1 Exam Questions and Answers. Do the conversions shown below, showing all work: 1. 246oK = ? oC 2. 45oC = ? oF 3. 18oF = ? oK Answer: 1. 246oK - 273 = -27 oC oK → oC (make smaller) -273 2. 45oC x 1.8 + 32 = 113 oF oC → oF (make larger) x 1.8 + 32 3. 18oF - 32 ÷ 1.8 = -7...