1. A typical bathtub can hold 102 gallons of water. Calculate the mass of natural gas that would need to be burned to heat the water for a tub of this size from 63 ◦F to 98 ◦F. Assume that the natural gas is pure methane (CH4) and that the products of combustion are carbon dioxide and water (liquid).

Question

1. A typical bathtub can hold 102 gallons of water. Calculate the mass of natural gas that would need to be burned to heat the water for a tub of this size from 63 ◦F to 98 ◦F. Assume that the natural gas is pure methane (CH4) and that the products of combustion are carbon dioxide and water (liquid).
Answer in units of g.

2. What volume of natural gas does this correspond to at 35◦C and 2 atm?
Answer in units of L.

Can you please explain to me how I should do these problems?