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Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains 0.00206 g of hydrogen, 0.0811 g of oxygen, and 0.0151 g of water vapor. The total pressure is 1101.1 mmHg. Calculate the partial pressure (in mmHg) of hydrogen gas.

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okpalawalter8

For the partial pressure in mmHg of hydrogen gas  is mathematically given as

partial p = 257.81mmHg

What is the partial pressure in mmHg of hydrogen gas?

Generally, the equation for the partial pressure is mathematically given as

partial p = mole of H2/total moles x total pressure

H2 =0.00206/2

H2 = 0.00103

O2 = 0.0811/32

O2 = 0.00253

H20 = 0.0151/18

H2O = 0.000839

total moles = 0.00103+0.000839+0.00253

total moles = 0.00439

therefore

partial p = 0.00103/0.00439 x 1101.1

partial p = 257.81mmHg

In conclusion, the partial pressure in mmHg of hydrogen gas is

partial p = 257.81mmHg

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