Question

If the mixture occupies a volume of 10.5 L at 65°C, calculate the total

number of moles of each gas in the mixture.

Answer 1

To calculate the total number of moles of each gas in the mixture, you can use the ideal gas law:

PV = nRT

Where:

P = pressure (in atmospheres)

V = volume (in liters)

n = number of moles

R = ideal gas constant

T = temperature (in Kelvin)

First, we need to convert the temperature from Celsius to Kelvin by adding 273.15:

T = 65°C + 273.15 = 338.15 K

Now, we'll rearrange the ideal gas law to solve for n (number of moles):

n = PV / RT

You have the following information:

Volume (V) = 10.5 L

Temperature (T) = 338.15 K

For the ideal gas constant (R), you can use the value R = 0.0821 L·atm/mol·K (assuming pressure is in atmospheres).

Let's assume the pressure (P) is not given in the question, so we'll keep it as a variable for now:

n = (P * 10.5 L) / (0.0821 L·atm/mol·K * 338.15 K)

Now, you can calculate the total number of moles of each gas in the mixture once you have the pressure (P) value. If the pressure is provided, substitute that value into the equation to find the number of moles.

Step-by-step explanation: