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6 December, 01:02

How many moles of calcium chloride will be produced from 22.9 g of hydrochloric acid?

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  1. 6 December, 04:07
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    0.314 moles

    Explanation:

    We are given;

    Mass of HCl is 22.9 g

    We are required to determine the number of moles of CaCl₂

    Assuming the equation for the reaction in question is;

    2HCl + Ca (OH) ₂→ CaCl₂ + 2H₂O

    Step 1: Determine the number of moles of HCl

    Moles = Mass : Molar mass

    Molar mass = 36.46 g/mol

    Moles of HCl = 22.9 g : 36.46 g/mol

    = 0.628 moles

    Step 2: Determine the number of moles of CaCl₂

    From the equation 2 moles of HCl reacts to produce 1 mole of CaCl₂

    Thus, moles of CaCl₂ = Moles of HCl * 1/2

    = 0.628 moles * 1/2

    = 0.314 moles

    Thus, the number of moles of CaCl₂ is 0.314 moles
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