Question

When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle If the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?

Answer 1

i think he is correct but i also think its b

Step-by-step explanation:

Answer 2

Answer: The partial pressure of hydrogen is 93.9 kPa.

Step-by-step explanation:

To calculate the partial pressure of hydrogen, we will follow Dalton's Law.

This law states that the total pressure of a mixture of gases is equal to the sum of the individual pressures exerted by the constituent gases.

Mathematically,

`p_(total)=p_A+p_B`

According to the question,

`p_(total)=p_(H_2O)+p_(H_2)`

We are given:

`p_(total)=97.1 kPa`

`p_(H_2O)=3.2kPa`

`p_(H_2)= ?kPa`

Putting values in above equation, we get:

`97.1kPa=3.2kPa+p_(H_2)`

`p_(H_2)= 93.9kPa`

Hence, the partial pressure of hydrogen is 93.9 kPa.