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2 years ago

A piece of wood with a density of 0.85 g/cm^3 has a mass of 25 g. what is the volume of the wood?

Chemistry

2 answers:

Karolina [17]2 years ago

5 0

Density = m/v therefore v = m/d v = 25/0.85 v = 29.4117... cm^3 ( = 2.94 * 10^-5 m^3

mafiozo [28]2 years ago

4 0

It is 21.25cm3 i think

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T = temperature of the solution = $25^oC=[273+25]=298K$

Putting values in above equation, we get:

$15.5mmHg=1\times \frac{0.033\times 1000}{\text{Molar mass of insulin}\times 6.5}\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 298K\\\\\text{molar mass of insulin}=\frac{1\times 0.033\times 1000\times 62.364\times 298}{15.5\times 6.5}=6087.2g/mol$

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