Can anybody help me with chemistry? theres nobody there! Please!

Question

anonymous · Answer

what do you need help with?

anonymous · Answer

Calculate the amount of heat necessary to raise the temperature of 12.0g of water from 15.4 degrees Celsius  to 93.0 degrees Celsius. the specific heat of water= 4.18 J/g.degrees celcius

anonymous · Answer

And also this question, for the reaction C(graphite) + O2 ---> CO2(g), Delta H is 393kJ/mol. How many grams of C (graphite) must be burned to release 275kJ of heat?

anonymous · Answer

change then into kelvin, and you have use a formula idk but were doing the same  thing in my class 12=grams 15.4=T1 93 = T2 and whats J

anonymous · Answer

J is joules