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CHEM 1211 Lab Mansal - Revised 05/201 Calculations (Show all work for trial one.

ID: 1027088 • Letter: C

Question

CHEM 1211 Lab Mansal - Revised 05/201 Calculations (Show all work for trial one. Mole M Use the back if you need more space.) (12 pts.) 84319 eMimot Mg The calculation for R depends on the assumption that Mg is the limiting reagent. Show the calculations that demonstrate this for Trial 1. Also be sure to explain in words how your calculations prove the limiting reagent. (6 pts): Mol HC Maanusnww is tue uni 4. 31 mol M 3 Prior to placing the eudiometer into the Equalization Chamber, is the pressure of the gas inside the tube greater than or less than the pressure outside the tube? Comparing the volume of the gas before and after placing the eudiometer into the Equalization Chamber should help with the explanation. Explain your logic. (4 pts): t experimental measurement most affected the accuracy of the experimental value of R? Explain. (HINT: Consider the significant figures in your data.) (3 pts.) What experimental changes might improve the pts.) accuracy of the determined R value? (3 64

Explanation / Answer

Answer to1 . The pressure of gas inside tube will be greater than outside gas. The ediometer will locate total pressure is from vapour and H2 gas.

Answer to 2. The experimental measurement of R is mostly affected by pressure p, number of moles of H2,

Answer to 3 The accuracy of experimental data would pressure volume and temperature.