The mass of 1 L of milk is 1032 g. The milk contains 4% butter by volume. If the specific gravity of butter is 0.865, then find the density of butter-free milk.
Text Solution
Verified by Experts
Volume of butter present in 1 L of milk = `40cm^(3)`. Its mass = `40xx0.865=34.6g` `therefore` Mass of butter-free milk = 1032 - 34.6 = 997.4 g and its volume = 1000 - 40 = `960cm^(3)` `therefore` Density of butter-free milk = `997.4/960=1.039g*cm^(-3)`.
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