To determine how many moles are in 10.5 L of CO gas, we can use the ideal gas law equation, PV = nRT, where:
- P is the pressure (usually at standard pressure)
- V is the volume of the gas in liters
- n is the number of moles of gas
- R is the ideal gas constant
- T is the temperature (usually at standard temperature)
In this case, the gas is carbon monoxide (CO), which is an ideal gas. The molar volume of an ideal gas at standard temperature and pressure (STP) is 22.4 L/mol. Therefore, the answer is:
B. 22.4 moles
This is because at STP, one mole of any gas occupies 22.4 liters of volume. So, if you have 10.5 liters of CO gas, it would be equivalent to 10.5/22.4 moles, which is approximately 0.47 moles. Therefore, option D is not the correct answer. The correct answer is option B, 22.4 moles, as one mole of any gas occupies 22.4 liters of volume at STP.
