6.) D. None of the above 6g of urea was dissolved in 800g of water. Calculate the percentage by mass of urea in the solution.
A. 0.74%
C. 0.75%
B. 0.78%
D. 1.188%

7.) 10.2 g of glucose is dissolved in 400g of water. Calculate the percentage by mass of glucose solution.
A. 1.999%
C. 2.000%
B. 7.899%
D. 2.500% ​