Question

Please help check! I will give you medal and fan you!

Answer 1

Those are hard haha

Answer 2

1. your answer is right. because 2722joules were added to an substance of 16.2gs.. right so all you have to do is divide 2722j by 9.22j/g c.. 295g c/16.2g then you get 18.0*C+ your initial temp which is 26 so 18+26=44*C. Good job on getting it right,.
2. i believe this answer to be false.. if the deltaH of a substance is higher it means that the energy required to break that bond is would higher as well thus the compound with the lowest DeltaH would require less energy to change states.

Answer 3

Okay Thanks :). And do you know if the last one is right? @Studenttrainee

Answer 4

what you do is convert 16.02g into moles.. by using your molar weight which is 14.77g/m
so it should be 16.02*1mole/14.77g the grams cancel and u get 1.085 moles now with moles what equation you use it Q1=amount * Hof fussion. + Q2=amount in moles *hofVap= 3.00* 100so your right.

Answer 5

is your answers in 10^0 or like 3.00* 10^0 or 3.00*100? big difference

Answer 6

Its 3.00 x 10^0 ? so thats right? @Studenttrainee

Answer 7

−1.47 x 10^2
- 10.0 J
3.00 x 10^0
1.00 x 10^2 J
Those are the answers sorry for confusing you
@Studenttrainee

Answer 8

@Studenttrainee is it still 3.00 x 10^0?