Week 4 (your nursing study bay) Assignment: 20 points<\/p>\n
Solve these ideal gas law problems. Show all work for credit.<\/p>\n
1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points)<\/p>\n
2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points)<\/p>\n
3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points)<\/p>\n
4. A 0.6 L canister of Oxygen gas has a temperature of 297 K contains 21 mols of O2 gas. What is the pressure of this tank? (1.5 points)<\/p>\n
5. Calculate the pressure, in atmospheres, of 8.67 mol CO(g) in a 2.0 L tank at 48 degrees C. (1 points)<\/p>\n
6. According to the Bronstead Lowery acid\/base theory, what is the definition of an acid and a base? (1 points)<\/p>\n
7. According to the Bronstead Lowery acid\/base theory, determine the acids and bases in the following chemical reactions: (1 point each, 3 points total)<\/p>\n
HCl + NaOH \u27f6 NaCl + H2O<\/p>\n
NH4+ + H2O \u21cc H3O+ + NH3<\/p>\n
H2SO4 + NH3 \u27f6 NH4+ + H1SO4-<\/p>\n
8. Name the following compounds and identify each of the following as a salt, strong acid, weak acid, strong base, or weak base. (0.5 points each, 3 points total)<\/p>\n
a. HCl<\/p>\n
b. KBr<\/p>\n
c. NH3<\/p>\n
d. LiOH<\/p>\n
e. CH3COOH<\/p>\n
f. Ca(OH)2<\/p>\n
9. Rank the following solutions in order of how acidic they are from most acidic to least acidic. (1 point)<\/p>\n
Solution A: [H3O+] of 1 x 10-2 M<\/p>\n
Solution B: pH 5<\/p>\n
Solution C: [H3O+] of 1 x 10-11 M<\/p>\n
Solution D: [H3O+] of 1 x 10-7 M<\/p>\n
Solution E: pH 9<\/p>\n
10. Predict the products of the reactions below and make sure each is balanced: (1.5 points each, 0.5 points for balance, 0.5 points for each product)<\/p>\n
HCl + Ca(OH)2 \u2192<\/p>\n
HBr + NaOH \u2192<\/p>\n
11. State the properties of a buffer solution and the key components of such a solution. (2 points)<\/p>\n
—-<\/p>\n
Week 4 (your nursing study bay)’s assignment is worth 20 points.<\/p>\n
Solve the following ideal gas law problems. Show all of your effort for credit.<\/p>\n
1. At 739 mmHg, a gas takes up 250 mL. Determine the volume of a gas at 514 mmHg for a gas at constant temperature. (1.50 point)<\/p>\n
2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.50 point)<\/p>\n
3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points)<\/p>\n
4. A 0.6 L canister of Oxygen gas has a temperature of 297 K contains 21 mols of O2<\/p>\n","protected":false},"excerpt":{"rendered":"
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