+ 76% CHEMISTRY I . ► ANGELLA AYO WAFOYO - Lab 9-1 Virtual Gas Lab.docx.pdf CP Chemistry Do the following practice problems to become familiar with using the ideal gas law. Make sure to use the correct R value based on the pressure you are given in the problem. (Label your units within the problem and show all of your work! Circle the final answer.) 21. Calculate the volume that a 0.323 mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm. 22. What is the pressure (in atm) of a 0.15 mol sample of argon gas at 30°C if its volume is 5.5L? (Put temperature in Kelvins by adding 273 to the "C !) 143 23. Determine the temperature (in K) of 2.49 moles of gas contained in a 1.00 L vessel at a pressure of KPa.

+ 76% CHEMISTRY I . ► ANGELLA AYO WAFOYO - Lab 9-1 Virtual Gas Lab.docx.pdf CP Chemistry Do the following practice problems to become familiar with using the ideal gas law. Make sure to use the correct R value based on the pressure you are given in the problem. (Label your units within the problem and show all of your work! Circle the final answer.) 21. Calculate the volume that a 0.323 mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm. 22. What is the pressure (in atm) of a 0.15 mol sample of argon gas at 30°C if its volume is 5.5L? (Put temperature in Kelvins by adding 273 to the "C !) 143 23. Determine the temperature (in K) of 2.49 moles of gas contained in a 1.00 L vessel at a pressure of KPa.

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 102GQ: Cloth can be waterproofed by coating it with a silicone layer. This is done by exposing the cloth to...

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You take a representative soil sample and determine the following data: Exchangeable cation cmolc/kg of soil Ca2+ 2.7 Mg2+ 1.0 K+ 0.1 H+ 1.0 Al3+ 2.8 Na+ 0.1 1) What is the CEC (cmolc/kg ) of this soil?
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using exactly 5.00 mL of 0.0400 M stock CuSO4 solution. Add 100 mL of water. Data for Part IMass of empty dish: 32.470 g empty dishVolume of 0.0400 M solution: 5.00 mL CuSO4 solution.Mass of dish and 0.0400 M solution: 37.497 g dish and solutionMass of dish and CuSO4 solid: 32.503 g dish and CuSO4 solidCalculations for Part I1. Calculate the mass of solution2. Calculate the mass of solid CuSO4 dissolved in the solution.3. Calculate the number of moles of solid CuSO4 dissolved in the solution.4. Calculate the mass of water evaporated from the solution.5. Calculate the density of solution, (g solution/mL solution).6. Calculate the % by mass, CuSO4 in solution (100 x g CuSO4/g solution).7. Calculate the molality of solution (moles CuSO4/kg solvent).8. Calculate the molarity of solution (moles CuSO4/L solution).9. Given that the true molarity is 0.0400 M, calculate the percent error of your result.
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using exactly 5.00 mL of 0.0400 M stock CuSO4 solution. Add 100 mL of water. Data for Part IMass of empty dish: 32.470 g empty dishVolume of 0.0400 M solution: 5.00 mL CuSO4 solution.Mass of dish and 0.0400 M solution: 37.497 g dish and solutionMass of dish and CuSO4 solid: 32.503 g dish and CuSO4 solidCalculations for Part I1. Calculate the mass of solution? 5.027 g 2. Calculate the mass of solid CuSO4 dissolved in the solution? 0.033 g 3. Calculate the number of moles of solid CuSO4 dissolved in the solution? 2.07 x 10-4 mol4. Calculate the mass of water evaporated from the solution? 0.0414 M5. Calculate the density of solution, (g solution/mL solution)?6. Calculate the % by mass, CuSO4 in solution (100 x g CuSO4/g solution)?7. Calculate the molality of solution (moles CuSO4/kg solvent)?8. Calculate the molarity of solution (moles CuSO4/L solution)?9. Given that the true molarity is 0.0400 M, calculate the percent error…
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