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14 June, 17:20

Calcium carbonate reacts with hydrochloric acid to form calcium chloride, carbon dioxide, and water. What mass of hydrochloric acid will be needed to produce 5.00 x 10 3 kg of calcium chloride?

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  1. 14 June, 20:29
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    3284.3 kg is the mass of HCl needed to produce 5000 kg of CaCl₂

    Explanation:

    This is the reaction:

    CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O

    Let's convert the mass of the product to moles (mass (g) / molar mas)

    Firstly we must convert kg to g

    1 kg = 1000 g

    5*10³ kg. 1000 g / 1 kg = 5*10⁶ g

    5*10⁶ g / 110.98 g/mol = 45053.1 moles

    Ratio is 1:2 So, let's make a rule of three:

    1 mol of CaCl₂ was produced by the use of 2 moles of HCl

    So 45053.1 moles of salt, were produced by, the double of moles

    45053.1 mol. 2 → 90106.2 moles

    Let's convert the moles, to mass (mol. molar mass)

    90106.2 mol. 36.45 g/mol = 3284375 g → 3284.3 kg
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