a constant consteant tco 1. Use the ideal gas law to derive the combined gas law

Question

a constant consteant tco 1. Use the ideal gas law to derive the combined gas law. Ris acosant 2. a. Assuming no elasticity forces in rubber, what volume should a 1.0 L balloon at 25°C and 1.00 atmosphere pressure be if immersed in liquid nitrogen (-196'C, 1 atm)? 3) b. 'When this experiment is actually performed, the volume of the balloon approaches 0.0 How do you account for the discrepancy? cuiha a ume 3.* 0.525 grams of magnesium is reacted with an excess amount of aqueous hydrochloric acid at 27°C and 752 mmHg Calculate the number of moles of hydrogen gas produced and its volume under the above conditions. n5 Climate change is a topic of considerable discussion. In order to have an understanding of the science of climate change, it is necessary to have some knowledge of the gases present in our atmosphere. Write down what you think are the three most abundant gases in the atmosphere (not counting water vapor which varies from 0% to 4%). Now look up the atmospheric content (do not change your original answer as you will not lose points for being wrong) and record the names of the four most abundant gases and their percentages. There is a follow-up exercise to this in Activity 35 in Part B, #1. 4. Most abundant gases in the atmosphere (excluding water vapor) Number Guesstimate Literature value 9 Source of literature value ©2015 Cengage Lanning. All Rights Reserved May not be-4copiedorduplicated,orposted to apblidyacesele website,inwhole or i pat custom page Handout will be provided

Explanation / Answer

Q3

m = 0.525 g of Mg

mol = mass/M W= 0.525/24.3 = 0.02160 mol of Mg

now..

Mg + 2HCl = H2 + MgCl2

moles of H2

1 mol of Mg = 1 mol of H2

0.02160 mol --> 0.02160mol of H2

now

P V= nRT

V = nRT/P = (0.02160)(62.4)(27+273)/(752) = 5.39136 Liters

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