Asked by Kelsey

How many grams of formaldehyde, H2CO, are in 500 ml of a 40% solution of formaldehyde in water? (Assume for this problem that the density of the formalin solution is 0.98 g/ml)
Answered by bobpursley
mass: density*volume=.98g/ml * 500 ml=490g

40 percent: .40*490 g= ?
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