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show the complete process of computation to obtain a correct answer​

Sagot :

example: What is the percent by mass concentration of a solution

that contains 5.30g of salt dissolved in 19.7g of water?​

Step-by-step explanation:

percent by mass concentration means how many percent does the solution contain mass of salt from the total mass of the solution

total mass = 5.3g  (salt)       +      19.7g (water) =     25 g   (solution)

percent by mass concentration = 5.3 / 25 = 0.212 = 21.2 %

Answer: 21.2 %