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24 December, 12:10

CaCO3 + 2HCL = CaCl2 + H2O + CO2

How many milliliters of 0.200 M HCL can react with 8.25g of CaCO3?

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  1. 24 December, 12:37
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    825 mL

    Explanation:

    We are given;

    Molarity of HCl is 0.200 M Mass of CaCO₃ is 8.25 g The equation of the reaction as;

    CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

    We are required to calculate the volume of the Acid that reacted.

    Step 1: Determine the moles of CaCO₃ that reacted;

    We know that;

    Moles = Mass : molar mass

    Molar mass CaCO₃ is 100.1 g/mol

    Therefore;

    Moles of CaCO₃ = 8.25 g : 100.1 g/mol

    = 0.0824 moles

    Step 2: Determine the moles of HCl that reacted;

    From the reaction, 1 mole of CaCO₃ reacts with 2 moles of HCl

    Therefore;

    Moles of HCl = Moles of CaCO₃ * 2

    = 0.0824 moles * 2

    = 0.1648 moles

    = 0.165 moles

    Step 3: Determine the volume of HCl

    We know that, Molarity = Moles : Volume

    Rearranging the formula;

    Volume = Moles : Molarity

    Therefore;

    Volume of HCl = 0.165 moles : 0.200M

    = 0.825 L

    But, 1 L = 1000 mL

    = 825 mL

    Therefore, the volume of HCl that reacted with CaCO₃ 825 mL
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