a container holds 6.4 moles of gas. hydrogen gas makes up 25% of the total moles in the container. if the…

a container holds 6.4 moles of gas. hydrogen gas makes up 25% of the total moles in the container. if the total pressure is 1.24 atm. what is the partial pressure of hydrogen? use $\frac{p_a}{p_t}=\frac{n_a}{n_t}$. 0.31 atm 0.93 atm 5.2 atm 31 atm

a container holds 6.4 moles of gas. hydrogen gas makes up 25% of the total moles in the container. if the total pressure is 1.24 atm. what is the partial pressure of hydrogen? use $\frac{p_a}{p_t}=\frac{n_a}{n_t}$. 0.31 atm 0.93 atm 5.2 atm 31 atm

Answer

Explanation:

Step1: Calculate moles of hydrogen

The total moles of gas $n_T = 6.4$ moles. Hydrogen makes up 25% of the total moles. So $n_a=0.25\times n_T=0.25\times6.4 = 1.6$ moles.

Step2: Use the partial - pressure formula

The partial - pressure formula is $\frac{P_a}{P_T}=\frac{n_a}{n_T}$. We know $P_T = 1.24$ atm, $n_a = 1.6$ moles and $n_T = 6.4$ moles. Substituting the values into the formula: $P_a=\frac{n_a}{n_T}\times P_T$. $P_a=\frac{1.6}{6.4}\times1.24$ $P_a = 0.25\times1.24=0.31$ atm

Answer:

0.31 atm