Be sure to answer all parts. Take all the thermodynamic data from your textbook. Assume the data do not vary with temperature. (a) Calculate ΔSuniv for the reaction H2O2(l) → H2O2(g) at 174.0°C. Enter your answer in the box provided.

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.

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explanation: