of calcium carbonate reacts completely with excess hydrochloric acid: . What volume of carbon dioxide forms at room temperature and pressure? ( of ; molar volume .)
Answer and explanation
Correct answer: A.
- Step 1: Moles of mol.
- Step 2: The equation is , so moles of mol.
- Step 3: Volume .
Answer
.
Why not the others: : uses the from the HCl coefficient to double the carbon dioxide. : forgets to convert g into moles. : loses a power of ten.
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