A-LevelChemistryGroup 29701/12 · Oct/Nov 2021 · Q141 Mark
A 0.005 mol sample of anhydrous calcium carbonate is completely thermally decomposed to give 100 cm³ of gas. In a separate experiment carried out under the same conditions, a 0.005 mol sample of anhydrous calcium nitrate is completely thermally decomposed. The volume of gaseous products is measured. What total volume of gaseous products is produced from the calcium nitrate?
A50 cm³
B100 cm³
C200 cm³
D250 cm³
✓ Correct answer
D: 250 cm³
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