If 200,4 g of water is mixed with 101.42 g of salt, the mass of the final solution would be reported as
A) 302 8.
B) 3008
C) 301.8 8.
D) 301.828

C) 301.8

Explanation:

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In this case, since the solution is composed by water and salt, the total resulting mass comes up from adding the mixed mass of each one:

Thus, we plug in to obtain:

Therefore, the answer should be C) 301.8 as it has four significant figures.

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