Question

A box with a volume of 10.0 L is filled with nitrogen gas (N2) at STP. Oxygen gas (O2) is then
pumped into the box until the final total pressure is 1.50 atm. How many moles of O2 are in the final
gas mixture? Assume the temperature remains constant.

A 5.0 L container holds 0.535 g of N2 gas at a temperature of 5.0 °C. What pressure does the gas exert
on the walls of the container?

Nitrogen and oxygen gases react to form nitrogen dioxide, NO2, according to the following equation:N2(g) + 2O2(g) → 2NO2(g)

If 5.0 moles of N2 and 8.0 moles of O2 are combined in a 10.0 L chamber and allowed to fully react at
a constant temperature of 100 °C, what will the final pressure be in the container?

A student is given a 10.0 M solution of HCl and asked to make 100 mL of a 1.0 M HCl solution.
What volume of the original 10.0 M solution will she need to take and dilute to 100 mL?

Answer 1