Raymond B. answered • 04/06/21
Tutor
5
(2)
Math, microeconomics or criminal justice
3/(245+3) = 3/248 = 0,0121 = 1.21% concentration
Andrew B.
asked • 04/06/21In this equation, do you do 3g/245g or do you do 3g/245g+3g?
3 g of sodium bromide is dissolved in 245 g water. What is the % (mass/mass) concentration of this solution?
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2 Answers By Expert Tutors
Anonymous A. answered • 04/06/21
Tutor
New to Wyzant
MS in Biology with a chemistry minor - 33 years teaching HS Chemistry
The question is asking for the percent of the total so you have 3 g in a total of 248 g.
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J.R. S.
04/07/21