Anonymous
Anonymous asked in Science & MathematicsChemistry · 12 months ago

How many moles of potassium nitrate are there in 50.0 g of potassium nitrate?

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  • 12 months ago

    To determine the number of moles, divide the mass by the mass of one mole. The formula of potassium nitrate is KNO3.

    Mass = 39.1 + 14 + 3 * 16 = 101.1 grams

    n = 50 ÷ 101.1

    Rounded to three significant digits, the number of moles is 0.495.

  • 12 months ago

    (50.0 g KNO3) / (101.10332 g KNO3/mol) = 0.495 mol KNO3

  • 12 months ago

    Here are instructions.

    https://www.wikihow.com/Convert-Grams-to-Moles

    Wolfram Alpha says 0.4945 moles.

  • 12 months ago

    potassium nitrate is 101.1 g/mol

    50.0 g / 101.1 g/mol = 0.495 mol

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