Chemistry: In a titration to find the concentration of 30ml of a H2SO4 solution, a student found that 40ml of 0.2M KOH solution was needed to reach the endpoint. What s the concentration of the H2SO4? Question 21 options: A) 0.27M B) 0.53M C) 0.4M D) 1.1M

In a titration to find the concentration of 30ml

Ответ:

tahtahtw4887

28.09.2020

The average partial pressure of N_2 in the atmosphere is 77770 Pa.

Explanation

Raoult's Law states that the partial pressure of each component in the mixture is equal to the total pressure multiplied by its mole fraction. It is mathematically expressed as

$p=\chi\times P$

where, p = partial pressure

$\chi$ = mole fraction

= total pressure

mole fraction of N_2 = $\frac{\text {moles of} N_2}{\text {total moles}}=\frac{77.0}{77.0+20.7+1.4+0.9}=\frac{77.0}{100}=0.77$

$p_{N_2}=0.77\times 1010mbar=777.7mbar=77770Pa$

(1 mbar=100Pa)

Thus the average partial pressure of N_2 in the atmosphere is 77770 Pa

0,0(0 оценок)

In a titration to find the concentration of 30ml of a H2SO4 solution, a student found that 40ml of 0.2M KOH solution was needed to reach the endpoint. What's the concentration of the H2SO4? Question 21 options:

A) 0.27M

B) 0.53M

C) 0.4M

D) 1.1M

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Chemistry

Ask an AI advisor a question

In a titration to find the concentration of 30ml of a H2SO4 solution, a student found that 40ml of 0.2M KOH solution was needed to reach the endpoint. What's the concentration of the H2SO4? Question 21 options: A) 0.27M B) 0.53M C) 0.4M D) 1.1M

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Chemistry

Ask an AI advisor a question

In a titration to find the concentration of 30ml of a H2SO4 solution, a student found that 40ml of 0.2M KOH solution was needed to reach the endpoint. What's the concentration of the H2SO4? Question 21 options:

A) 0.27M

B) 0.53M

C) 0.4M

D) 1.1M