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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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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 flask contains 0.750 mol of oxygen. If the gas is compressed isothermally to half its original volume at RTP, how many moles change?
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 reaction produces 0.500 mol of carbon dioxide gas at RTP. What volume (in dm3) does this gas occupy?
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?
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?
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?
A sealed bag contains 2.4 × 10^23 molecules of an ideal gas at RTP. What is the volume (dm3) of the gas?
When 0.500 mol of hydrogen gas is produced at RTP, what volume in dm3 and in cm3 does it have?
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 measures 600 cm3 of hydrogen at RTP produced from reacting magnesium with acid. How many molecules of hydrogen is this? (Use 24 dm3 = 24 000 cm3 per mole and Avogadro 6.02×10^23.)