[shadowshot0]

A typical bathtub can hold 98 gallons of wa-
ter. Calculate the mass of natural gas that
would need to be burned to heat the water for
a tub of this size from 67◦F to 109◦F. As-
sume 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.

What volume of natural gas does this corre-
spond to at 28◦C and 1.4 atm?
Answer in units of L.

i tried to convert some of the quantities but i dont kno wat to do afterwards, pls help this is due tomorrow

i kno q=mcΔT and that u can find the ΔHreaction using a chem table but dont kno which 1works

[lancenti]

This isn't a heat of formation problem, but rather a heat of combustion problem since you're burning methane.