June 2023 NY Regents Chemistry Exam
43 A solution is prepared using 9.80 grams of NaHCO3 in enough water to make 1500. grams of total solution. What is the concentration of the solution expressed in parts per million?
Solution: We can find concentration equations on Table T on the Reference Table.
Parts per million = (mass of solute/mass of solution)*1000000
Now, all we need to do is to plug our given values in.
Parts per million = (9.80g/1500g)*1000000
Answer: 4
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