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29 November, 23:56

How many grams of nano3 are needed to prepare 100 grams of a 15.0 % by mass nano3 solution? will give brainliest

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  1. 30 November, 00:22
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    Calculate the mass percent of a potassium nitrate solution when 15.0 g KNO3 is dissolved in 250 g

    of water.

    2. Calculate the mass percent of a sodium nitrate solution when 150.0 g NaNO3 is dissolved in 500 mL

    of water. Hint: 1 mL water = 1 g water

    3. Calculate the weight of table salt needed to make 670 grams of a 4.00% solution.

    4. How many grams of solute are in 2,200 grams of a 7.00% solution?

    5. How many grams of sodium chloride are needed to prepare 6,000 grams of a 20% solution?

    Mass Percent = Grams of Solute

    Grams of Solution X 100%

    100%

    Grams of Solute = Grams of Solution X Mass Percent

    = 26.8 grams NaCl

    = 670 grams X 4.00%

    100%

    100%

    Grams of Solute = Grams of Solution X Mass Percent

    = 154 grams solute

    = 2,200 grams X 7.00%

    100%

    100%

    Grams of Solute = Grams of Solution X Mass Percent

    = 1,200 grams NaCl

    = 6,000 grams X 20.0%

    100%
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