6. A solution is formed by adding 50 g of ammonium nitrate to 275g water What is the percent by mass of
ammonium nitrate?
a 14%
b.16%
c.15%
d. 10%
7 A solution is made by adding 15 mi benzene to 50 mi toluene. What is percent by volume of benzene?
a 21%
b.22%
c.23%
d. 24%
8. What is the percent by mass of 10 g of salt mixed with 100 g of water?
b. 19%
c.29%
0.39%​