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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

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 gas syringe contains 40.0 cm3 of carbon monoxide at RTP. How many moles of CO does this represent?
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?
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.)
A gas occupies 600 cm3 at RTP. Express this volume in moles.
A balanced reaction: 4 NH3(g) + 5 O2(g) ? 4 NO(g) + 6 H2O(g). If 48.0 dm3 of O2 at RTP is used, what volume of NO (dm3) at RTP is produced?
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 student collects 15.0 cm3 of oxygen gas at RTP. What mass (in grams) of oxygen (O2) has been collected? (Ar O = 16)
Hydrogen gas is collected over water; the collected gas volume is 50.0 cm3 at RTP but water vapour contributes 2.0 cm3. What is the volume of dry hydrogen at RTP and the number of moles?
At RTP, 2.4 g of methane (CH4, Mr = 16) is burned producing CO2. What volume of CO2 (dm3) at RTP is formed, assuming complete combustion?
What volume of hydrogen (dm3) at RTP would be required to react completely with 12.0 dm3 of oxygen (O2) at RTP in the reaction 2 H2 + O2 ? 2 H2O?