A sample of rubbing alcohol (C3H8O, Delta Hvap = 39.9 kJ/mol) is fully boiled using 20,189.5 kJ of heat. What is its mass (in kilograms)?
Added by Sandra V.
Step 1
Using the equation Q = n * ΔHvap, where Q is the heat added, ΔHvap is the heat of vaporization, and n is the number of moles, we can rearrange the equation to solve for n: n = Q / ΔHvap n = 20189.5 kJ / 39.9 kJ/mol n = 505.89 mol Show more…
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