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Daniel prepared a solution by dissolving 18g of salt in 182g of water. What is the mass percent of salt in the salt solution? 
a.0.9 %

b.9 %


c. 18 %

d.90 %
Isopropyl alcohol is sold as a 40% solution of isopropyl alcohol in water. What volume of Isopropyl alcohol is used to make 600mL of Isopropyl alcohol? 
a.24 mL

b.240 mL

c.30 mL

d.300 mL