Asked by sara
Apharmacist incorporates 6g of coal tar into 120g of a5% coal tar ointment calculate the percetage (w/w) of coal tar in finshed product
Answers
Answered by
Steve
look at the amount of tar:
1.0*6 + .05*120 = x(126)
x = 0.095, or 9.5%
Or, consider that 5% of 120g = 6g
So, now you have 12/126 = .095
1.0*6 + .05*120 = x(126)
x = 0.095, or 9.5%
Or, consider that 5% of 120g = 6g
So, now you have 12/126 = .095
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