The amount in moles of a pure substance in a given sample can be calculated from the mass of the sample and the molar mass of the substance .
For substances that are gases, the volume occupied depends on amount in moles and the molar volume of a gas at a particular temperature. This is the volume occupied by 1 mole of gas at that temperature.
This activity is concerned with relating the mass of a substance in a involved in a chemical reaction to the volume of a gas produced or consumed in the same reaction. On completing of the activity, you should be able to
The amount in moles of different substances consumed or produced in a reaction are mathematically related through their coefficients in the balanced equation for the reaction.
aA + bB 
cC + dD
A,B,C,D substances in any phase
a,b,c,d coefficients required for balancing
cC + dDA,B,C,D substances in any phase
a,b,c,d coefficients required for balancing
For substances that are gases, the volume occupied depends on amount in moles and the molar volume of a gas at a particular temperature. This is the volume occupied by 1 mole of gas at that temperature.
This activity is concerned with relating the mass of a substance in a involved in a chemical reaction to the volume of a gas produced or consumed in the same reaction. On completing of the activity, you should be able to
- calculate the amount of the gas produced or consumed from the mass of another substance involved in the reaction
- use the molar volume to calculate the volume of gas produced or comsumed in the reaction.