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24 November, 08:29

A student needed to make 100.0 mL of 0.20M NaOH solution. How many grams of sodium hydroxide does the student need to weigh out

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  1. 24 November, 08:41
    0
    0.08 g

    Explanation:

    100.0 mL = 0.10 L

    Multiply the volume by the molarity to find moles.

    0.10 L * 0.20 M = 0.002 mol

    Convert moles to grams.

    0.002 mol * 40 g/mol = 0.08 g
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