A 0.48 kg piece of wood floats in water but is found to sinkin alcohol (specific gravity= 0.79) in which it has an apparentmass 0.035 kg. What is the SG of the wood?

Zoe Oneal 2021-01-05 Answered
A 0.48 kg piece of wood floats in water but is found to sinkin alcohol (specific gravity= 0.79) in which it has an apparentmass 0.035 kg. What is the SG of the wood?
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un4t5o4v
Answered 2021-01-06 Author has 105 answers

Mass of wood = 0.48 kg
It floats on water. So ? wood Apparent mass in alcohol= 0.035 kg
Loss in mass=0.480.035=0.445 kg = mass of alcoholdisplaced
Volume of alcohol displaced =0.445/790=5.63×104m3= Volume of wood
Density of wood = Its mass / volume = 0.48/5.63×104=853 kg m-3
Specific gravity of wood = Density of wood / Density of water
= 853 /1000
= 0.853

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