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Question 1 of 3
There are 10 ml of eye drops and 13 % of the solution by volume is Distilled Witch Hazel. How many ml of Distilled Witch Hazel are there in the 10 ml of eye drops?
ml
100
Amount of Witch Hazel = 13 x 10 ml
100
Amount of Witch Hazel = 1.3 ml
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Question 2 of 3
Zinc and Coal Tar Paste BNF contains 6 % Coal Tar by mass. How many grams of Coal Tar are there in 25 g of Zinc and Coal Tar Paste?
100
Amount of Coal Tar = 6 x 25 g
100
Amount of Coal Tar = 1.5 g
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Question 3 of 3
Zinc and Coal Tar Paste BNF contains 38 % Starch by mass. How many grams of starch are there in 175 g of Zinc and Coal Tar Paste?
100
Amount of Starch = 38 x 175 g
100
Amount of Starch = 66.5 g
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