[Kriti]

Can someone tell me if my answers to these two questions are right please? If not can someone help please

1a) A camper heated 250 g of water from 15 °C to 75 °C.
Calculate the energy absorbed by the water in kJ.
(Heat capacity of water, c = 4.18 J g-1 °C-)

1b) The spirit burner used 2.6 g of ethanol to heat the
water. Calculate the enthalpy of combustion of ethanol
in kJ mol-1.

1a) 62.700J
1b) -1,109.73kJmol-1

[Borek]

Looks OK, just watch significant digits.