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3 July, 22:05

What mass of hydrochloric acid (in grams) can 2.7 g of sodium bicarbonate neutralize? (Hint: Begin by writing a balanced equation for the reaction between aqueous sodium bicarbonate and aqueous hydrochloric acid.)

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  1. 4 July, 01:09
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    1.17 grams of HCl can neutralize 2.7 grams sodium bicarbonate

    Explanation:

    Step 1: Data given

    Mass of sodium bicarbonate = 2.7 grams

    Step 2: The balanced equation

    HCl + NaHCO3 ⇔ NaCl + H2O + CO2

    Step 3: Calculate moles NaHCO3

    moles NaHCO3 = 2.7 g / 84 g/mol = 0.032 moles

    Step 4: Calculate moles HCl

    For 1 mol NaHCO3 we need 1 mol HCl

    For 0.032 moles NaHCO3 = 0.032 moles HCl

    Step 5: Calculate mass HCl

    Mass HCl = moles HCl * molar mass HCl

    mass HCl = 0.032 * 36.46 g/mol = 1.17 grams

    1.17 grams of HCl can neutralize 2.7 grams sodium bicarbonate
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