Le Chatelier’s Principle: Changing Concentration (Edexcel GCSE Chemistry): Quizzes

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Calculation with gases
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What is the molar volume of a gas at standard room temperature and pressure?

24 dm324 \text{ dm}^3 per mole

What is the standard room temperature for gas calculations?

20°C20°\text{C}

What is the standard pressure for gas calculations?

1 atmosphere

Which formula calculates moles from volume?

Moles=Volume24\text{Moles} = \frac{\text{Volume}}{24}

Which formula calculates volume from moles?

Volume=Moles×24\text{Volume} = \text{Moles} \times 24

Calculate the moles in 48 dm348 \text{ dm}^3 of gas at standard conditions.

22 moles

Calculate the volume of 33 moles of gas at standard conditions.

72 dm372 \text{ dm}^3

How many cm3\text{cm}^3 are in 1 dm31 \text{ dm}^3?

1000 cm31000 \text{ cm}^3

What unit should be used for volume in gas calculations?

dm3\text{dm}^3

When can you use the molar volume of 24 dm324 \text{ dm}^3 per mole?

At 20°C20°\text{C} and 11 atmosphere

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