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CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + CO 2 (g) + H 2 O(l) Consider the above reaction, what mass of CaCl 2 will be formed if 250 mL of 0.76 M HCl reacts with 1000 g of CaCO 3 ? (Given: Molar mass of Ca, C, O, H and Cl are 40, 12, 16, 1 and 35.5 g mol –1 , respectively)

1. 3.908 g
2. 2.636 g
3. 10.545 g
4. 5.272 g

Correct answer: 10.545 g

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