When a 0.570 g sample of olive oil is burned in a calorimeter, the heat released increases the temperature of 370 g of water from 22.7 ∘C to 39.2 ∘C. What is the energy value of the olive oil in kJ/g?
What is the energy value of the olive oil in kcal/g?

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

answermeridional ;