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4 May, 20:11

1. Ir a mixture contains 0.639 g NaCl, 0.350 g NHACI, & 0.851 g of SiO2, with due regar

Signiricant figures, what is the mass percent of NaCl in the mixture?

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  1. 4 May, 20:49
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    34.73%

    Explanation:

    We are given;

    A mixture that contains;

    NaCl = 0.639 g NH₄Cl = 0.350 g SiO₂ = 0.851 g

    We are required to determine mass percent of NaCl in the mixture;

    Step 1: Determine the total mass of the mixture;

    Mass of the mixture = Mass of NaCl + Mass of NH₄Cl + Mass of SiO₂

    = 0.639 g + 0.350 g + 0.851 g

    = 1.84 g

    Step 2: Calculate the mass percent of NaCl in the mixture

    The mass % of NaCl = (Mass of NaCl : Mass of the mixture) 100

    = (0.639 g : 1.84 g) * 100

    = 34.73%

    Therefore, the mass % of NaCl in the mixture is 34.73%
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