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Sue dissolved a certain amount of salt in 400 grams of water to obtain 405 grams of salt solution. What was the mass of the salt used to make the solution?

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3 votes

Answer: 5 grams

Step-by-step explanation:

User Hrvoje Miljak
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Sue added salt to water in order to make a salt solution, the original amount of water is 400 grams. In order for Sue to obtain 405 grams of salt solution using 400 grams of water, 5 grams of salt must be added.
User Sarien
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