Gr 11 Physical Sciences: Ch 6.3 Volume relationships in gaseous reactions

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What is the relationship between the pressure, volume, temperature, and number of moles of a gas, as described by the ideal gas law?

$P = \frac{nRT}{V}$
$V = \frac{nRT}{P}$
$n = \frac{PV}{RT}$
$PV = nRT$ (correct)

What is the volume of one mole of an ideal gas at Standard Temperature and Pressure (STP)?

20.8 dm³
22.4 dm³ (correct)
24.5 dm³
26.1 dm³

What is the purpose of determining the molar mass of a reactant in a gaseous reaction?

To calculate the volume of the reactant
To calculate the number of moles of the reactant (correct)
To calculate the ideal gas constant
To determine the stoichiometric ratios

What is the formula used to calculate the number of moles of a reactant, given its mass and molar mass?

$n = \frac{m}{M}$ (D) Signup and view all the answers

What is the purpose of using the stoichiometric ratios in a gaseous reaction?

To find the mole ratio between the reactant and the gaseous product (A) Signup and view all the answers

What is the next step after determining the number of moles of the reactant in a gaseous reaction?

Use the stoichiometric ratios (B) Signup and view all the answers

What is the role of the ideal gas law in solving problems involving gaseous reactions?

To relate the pressure, volume, and temperature of the reactant and product (C) Signup and view all the answers

What is the purpose of calculating the number of moles of the gaseous product in a gaseous reaction?

To calculate the volume of the product (B) Signup and view all the answers

What is the primary application of stoichiometry in gaseous reactions?

To find the mole ratio between reactants and products (A) Signup and view all the answers

What is the unit of measurement for the molar volume at STP?

dm³/mol (A) Signup and view all the answers

What is the first step in solving problems involving gaseous reactions?

Determine the molar mass of the reactant (D) Signup and view all the answers

What is the ideal gas constant (R) used for?

To relate the pressure, volume, temperature, and number of moles of a gas (A) Signup and view all the answers

What is the purpose of calculating the number of moles of the gaseous product?

To calculate the volume of the product (A) Signup and view all the answers

What is the unit of measurement for the mass of a reactant?

grams (B) Signup and view all the answers

What is the primary assumption of the ideal gas law?

Gases exhibit ideal behavior under certain conditions (C) Signup and view all the answers

What is the relationship between the number of moles of a reactant and the number of moles of a gaseous product?

The number of moles of the reactant is proportional to the number of moles of the product (C) Signup and view all the answers

What is the primary application of the ideal gas law in solving problems involving gaseous reactions?

To relate the pressure, volume, and temperature of a gas (A) Signup and view all the answers

A gaseous reaction involves the reactant A, with a molar mass of 40 g/mol, and the product B. If 20 g of A reacts to form 11.2 dm³ of B at STP, what is the mole ratio of A to B?

1:2 (B) Signup and view all the answers

What is the consequence of assuming ideal gas behavior in a gaseous reaction?

The volumes of reactants and products are directly proportional to the number of moles (C) Signup and view all the answers

In a gaseous reaction, the reactant C has a mass of 15 g and a molar mass of 30 g/mol. If the reaction produces 3.36 dm³ of the product D at STP, what is the mole ratio of C to D?

1:2 (A) Signup and view all the answers

What is the primary advantage of using the molar volume at STP in solving problems involving gaseous reactions?

It provides a convenient conversion factor between moles and volume (B) Signup and view all the answers

In a gaseous reaction, the reactant E has a mass of 25 g and a molar mass of 50 g/mol. If the reaction produces 4.48 dm³ of the product F at STP, what is the number of moles of F produced?

0.4 mol (C) Signup and view all the answers

What is the relationship between the volume of a gaseous reactant and the volume of a gaseous product at STP?

The volumes are directly proportional to the mole ratios (D) Signup and view all the answers

What is the primary limitation of the ideal gas law in solving problems involving gaseous reactions?

It is only applicable to ideal gases (B) Signup and view all the answers