Heating decomposed a sample of 2.98 g.

Heating decomposed a sample of 2.98 g silver (I) oxide into solid silver and oxygen gas. The product of oxygen gas was collected by the displacement of water at 30 degree Celcius and 750 mmHg. If the vapor pressure of water at 30 degree Celcius is 31.82 mmHg, what is the volume of ‘wet’ oxygen gas in dm3? Please write and balance the chemical equation.