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23-05-2020
Chemistry

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What is the percent by mass of a solution that contains 25 g KNO3 in 400.0 g H2O?

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23-05-2020

Answer: 5.9%

Explanation:

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24-05-2020

Answer:

5.9

Explanation: use the formula mass % = mass of solute/mass of solution x 100

add 400g of H2O and 25g of KNO3 to get your mass of solution which is 425

Then device 25/ 425 and multiply by 100 to get 5.88 which rounds to 5.9

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