Homework Help: Chemistry

Posted by anonymous on Saturday, May 15, 2010 at 11:37pm.

The main component of nail polish remover is acetone, which has ∆Hvap= +31.3 kJ/mol. How many kJ of energy will be exchanged between your skina dn 48.9 mL of acetone which have been spilled on you? (density of acetone =0.79 g/cm^3)

Chemistry - DrBob222, Saturday, May 15, 2010 at 11:55pm
Mass of acetone = volume x density.
Calculate mass.

moles = grams/molar mass
Calculate moles acetone.

delta Hvap = 31.3 kJ/mol.
Calculate heat transfer.
Chemistry - anonymous, Sunday, May 16, 2010 at 2:14am
thank you! i completely understand it now!

Answer this Question

Related Questions

Chemistry - Consider the following thermochemical equation for the combustion of...
chem - consider the following thermochemical equation for the combustion of ...
AP Chem - The energy change H associated with the reaction NBr3(g) + 3H2O(g...
chemistry - Calculate the heat of formation of water from its constituent ...
chemistry - Hvap 40.65 kJ/mol Hf -285.83 kJ/mol Hfusion 6.03 kJ/mol specific ...
chemistry - Hvap 40.65 kJ/mol Hf -285.83 kJ/mol Hfusion 6.03 kJ/mol specific ...
chemistry - A sample of 1.00 mol H2O(g) is condensed isothermally and reversibly...
Chemistry II - Acetone, C3H6O, is the main ingredient of nail polish remover. A ...
Chemistry II - Acetone, C3H6O, is the main ingredient of nail polish remover. A ...
Chemistry II - Acetone, C3H6O, is the main ingredient of nail polish remover. A ...

For Further Reading

First Name:
School Subject:
Answer: