Gr 11 Physical Sciences: Ch 6.1 Gases and solutions

What is the standard temperature in Kelvin at standard temperature and pressure (STP)?

303 K
273 K (correct)
250 K
293 K

What is the ideal gas equation?

V = nRT
pV = nRT (correct)
pV = RT
n = pV/R

What is the volume of one mole of gas at STP?

20.4 dm³
24.5 dm³
25.6 dm³
22.4 dm³ (correct)

If there are 2 moles of gas, what is the volume at STP?

44.8 dm³ (D) Signup and view all the answers

What is the formula used to calculate the volume of a gas involved in a chemical reaction?

V_A = a/b V_B (D) Signup and view all the answers

What is the concentration of a solution defined as?

The number of moles of solute per liter of solution (C) Signup and view all the answers

What is the formula used to calculate the concentration of a solution?

C = n/V (B) Signup and view all the answers

What is the unit of concentration of a solution?

mol·dm⁻³ (A) Signup and view all the answers

What is the value of R in the ideal gas equation?

8.31 J·K⁻¹·mol⁻¹ (B) Signup and view all the answers

What is the unit of pressure used in the ideal gas equation?

Pa (B) Signup and view all the answers

If a reaction involves 2 moles of gas A and 3 moles of gas B, what is the ratio of their volumes?

2:3 (B) Signup and view all the answers

What is the concentration of a solution with 2 moles of solute in 4 liters of solution?

0.5 mol·dm⁻³ (B) Signup and view all the answers

What is the volume of 3 moles of a gas at STP?

33.6 dm³ (B) Signup and view all the answers

If the volume of gas B is 33.6 dm³, what is the volume of gas A in a reaction with a stoichiometric coefficient ratio of 2:3?

22.4 dm³ (A) Signup and view all the answers

What is the formula used to calculate the volume of a gas at STP?

V = 22.4 n (C) Signup and view all the answers

What is the relationship between the volume of gas A and gas B in a reaction with a stoichiometric coefficient ratio of a:b?

V_A = (a/b) V_B (C) Signup and view all the answers

What is the value of the product pV in the ideal gas equation when 1 mole of a gas is at STP?

2265.9 J (A) Signup and view all the answers

A reaction involves 2 moles of gas A and 3 moles of gas B. If the volume of gas B is 33.6 dm³, what is the volume of gas A?

16.8 dm³ (A) Signup and view all the answers

What is the concentration of a solution with 1.5 moles of solute in 2 liters of solution?

0.75 mol·dm⁻³ (B) Signup and view all the answers

A reaction involves 2 moles of gas A and 1 mole of gas B. If the volume of gas A is 44.8 dm³, what is the volume of gas B?

22.4 dm³ (B) Signup and view all the answers

What is the volume of 0.5 moles of a gas at STP?

11.2 dm³ (B) Signup and view all the answers

A solution has a concentration of 2 mol·dm⁻³. If the volume of the solution is 1.5 liters, what is the number of moles of solute?

3 moles (C) Signup and view all the answers

A reaction involves 3 moles of gas A and 2 moles of gas B. If the volume of gas A is 67.2 dm³, what is the volume of gas B?

33.6 dm³ (C) Signup and view all the answers

What is the pressure in the ideal gas equation when 1 mole of a gas is at STP?

101,300 Pa (D) Signup and view all the answers

What is the volume of 4 moles of a gas at STP?

89.6 dm³ (B) Signup and view all the answers

In a reaction, the ratio of the stoichiometric coefficients of gas A to gas B is 2:3. If the volume of gas B is 50.4 dm³, what is the volume of gas A?

33.6 dm³ (A) Signup and view all the answers

What is the concentration of a solution with 3 moles of solute in 1.5 liters of solution?

2.0 mol·dm⁻³ (B) Signup and view all the answers

A reaction involves 2 moles of gas A and 3 moles of gas B. If the volume of gas A is 44.8 dm³, what is the volume of gas B?

67.2 dm³ (A) Signup and view all the answers

What is the number of moles of solute in a solution with a concentration of 1.5 mol·dm⁻³ and a volume of 2 liters?

2.5 mol (C) Signup and view all the answers

In a reaction, the ratio of the stoichiometric coefficients of gas A to gas B is 3:2. If the volume of gas A is 67.2 dm³, what is the volume of gas B?

44.8 dm³ (B) Signup and view all the answers

What is the volume of 2.5 moles of a gas at STP?

55.0 dm³ (C) Signup and view all the answers

A solution has a concentration of 1.2 mol·dm⁻³. If the volume of the solution is 1.8 liters, what is the number of moles of solute?

2.16 mol (C) Signup and view all the answers