Question

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

Answer 1

C) 301.8

Step-by-step explanation:

Hello!

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:

`m_(sol)=m_(w)+m_(salt)`

Thus, we plug in to obtain:

`m_(sol)=200.4g+101.42g\\\\m_(sol)=301.8g`

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

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