Question
19. During a laboratory experiment, a student filled a balloon with two different gases, CO_(2) and N_(2) The atmospheric pressure in the laboratory was 103 kPa. The partial pressure of the CO_(2) added to the balloon was 40 kPa. What was the partial pressure of the N_(2) in the balloon? 63 kpa 43 kPa 53 kpa 73 kPa
Answer
4.1
(170 Votes)
Norma
Veteran · Tutor for 9 years
Answer
Using the formula from step 3, we get:
So, the partial pressure of
in the balloon is 63 kPa.
Explanation
## Step 1: In this problem, we are asked to determine the partial pressure of
in the balloon under given atmospheric and
partial pressures. All pressures are given in the same unit (kPa), so no conversion is necessary.## Step 2: The law of partial pressures, also known as Dalton's law, states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the pressures that each gas would exert alone. Therefore, subtracting the partial pressure of
, from the total atmospheric pressure would give us the partial pressure of the
gas.### The formula for Dalton's law is:
## Step 3: Subtract the partial pressure of
from the total atmospheric pressure to find the partial pressure of
.### The formula is: