Unit 9 & 10 Chemistry Review

Formulas

100

PV=nRT

What is the ideal gas law formula?

200

P₁V₁        P₂V₂

------ = ------

n₁T₁        n₂T₂

What is combined gas law formula?

300

 moles of solute

--------------------

volume of solution

What is the molarity formula?

400

n solute

----------

V solution

What is the molar concentration formula?

500

                  L atm                L kPa             L mmHg

R =0.08206 -------- = 8.314 ------ = 62.4 -----------

                   mol K                mol K            mol K

What are the gas constants?

Acidic, Basic, or Neutral?

100

pH of 3.27

What is acidic?

200

[H¹⁺] of 2.22 x 10^-13

What is basic?

300

[OH^1-] of 1.00 x 10^-7

What is neutral?

400

pOH of 12.98

What is acidic?

500

pH of 10.00

What is basic?

Conjugate acids & bases

100

H₂SO₄

What is HSO₄^1-?

200

Br^1-

What is HBr?

300

OH^1-

What is H₂O?

400

CH₃COOH

What is CH₃COO^1-?

500

PO₄^3-

What is HPO₄^2-?

pH/pOH Problems

100

Calculate the pH of a solution of nitric acid that has a hydroxide ion concentration of 7.66 x 10^-11 M.

What is 3.884?

200

Determine the pH of a 5.98 x 10^-3 M hydrobromic acid solution.

What is 2.223?

300

What is the hydroxide ion concentration of a nitric acid solution with a pH of 1.43?

What is 2.7 x 10^-13 M?

400

If a sodium hydroxide solution has a hydrogen ion concentration of 4.79 x 10^-12 M, what is the pOH of the solution?

What is 2.680?

500

If a nitric acid solution has a hydrogen ion concentration of 2.34 x 10^-3 M, what is the concentration of the solution?

What is 2.34 x 10^-3 M?

Ideal Gas Law Problems

100

What volume would 512.0 g of oxygen gas fill at 3.12 atm and 575.0ºC?

What is 357 liters?

200

How many moles of a gas would be present if the gas is trapped in a 60.0 liter vessel at 70.0ºC at a pressure of 6.50 atm?

What is 13.86 moles?

300

What pressure in atmospheres will 1.36 kg of N₂O gas exert when it is condensed into a 25.0 L cylinder and it is stored in an outdoor shed where the temperature reaches 59.0ºC during the day?

What is 33.7 atm?

400

When 0.770 mol of nitrogen gas at 150.0ºC occupies 6.70 L, what will the pressure be in kPa?

What is 404.17 kPa?

500

Find the molar mass of a mystery gas that has a volume of 72.5 mL at a temperature of 68.0ºC and a pressure of 0.980 atm if it has a mass of 0.207 grams.

What is 81.6 grams per mole?