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Use Of Amount Of Substance In Relation To Volumes Of Gases (chemistry Only) (ht Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Use Of Amount Of Substance In Relation To Volumes Of Gases (chemistry Only) (ht Only)' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
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A 250 cm3 gas syringe contains nitrogen at RTP. How many molecules of nitrogen are present? (Avogadro constant = 6.02 × 10^23 mol-1; 24 dm3 per mole at RTP.)
Which expression correctly gives moles of gas n from volume V at RTP using molar volume Vm?
A gas reaction at RTP gave 36.0 dm3 of product gas. If that product corresponds to 1.50 mol, what molar volume (dm3 mol-1) was used by the student?
A cylinder contains 2.00 mol of helium gas at RTP. What volume does it occupy (dm3)?
Ammonia decomposes to nitrogen and hydrogen: 2 NH3(g) ? N2(g) + 3 H2(g). If 48.0 dm3 of NH3 at RTP decomposes completely, what total volume of gas (dm3) at RTP will be present after decomposition?
A sample of carbon monoxide (CO) gas occupies 10.0 cm3 at RTP. If completely oxidised to CO2, what volume of CO2 (cm3) at RTP will be produced?
If 0.0600 mol of gas at RTP occupies 1.44 dm3, what molar volume did the student effectively use?
When 0.500 mol of hydrogen gas is produced at RTP, what volume in dm3 and in cm3 does it have?
A gas syringe contains 40.0 cm3 of carbon monoxide at RTP. How many moles of CO does this represent?
A flask contains 0.750 mol of oxygen. If the gas is compressed isothermally to half its original volume at RTP, how many moles change?
When 6.00 dm3 of hydrogen gas (RTP) reacts with excess nitrogen to make ammonia, how many moles of hydrogen are used? (Use 24 dm3 per mole at RTP.)