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larisa86 [58]
3 years ago
6

NEED HELP AS SOON AS POSSIBLE!

Chemistry
1 answer:
Degger [83]3 years ago
5 0
I got :
  7) C
  8) D
  9) B
10) D

The decimal difference in my calculations may be due to my rounding off or my use of the exact values in some cases.
Note: Mr - Molar Mass
          L - Avogadro's Constant

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Hello,

In this case, by-mass percent is computed in terms of the mass of the solute and the mass of the solvent as shown below:

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Thus, solving for the mass of the solution, we obtain:

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