BRAINCAKEGas Volume Calculation - 1
Question: Calcium carbonate decomposes on heating. What volume of carbon dioxide, measured at room temperature and pressure (rtp), is produced when 5.00 g of calcium carbonate is completely decomposed? (Ar: Ca = 40, C = 12, O = 16; molar volume at rtp = 24 dm3 mol-1)
CaCO3(s) → CaO(s) + CO2(g)
At rtp, one mole of any gas occupies 24 dm3, so:
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Key terms in this lesson
- mole
- The amount of substance containing 6.02 x 10^23 particles, the same number as the atoms in 12 g of carbon-12.
More in Amount of Substance and Calculations
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All 39 lessons in Amount of Substance and Calculations · All Edexcel AS-level Chemistry topics