How many joules of heat energy are needed to completely change 14.0 g of water to steam at the boiling temperature?

Question

aaronq · Answer

this question is a little different from your previous one.

use the formula $q=x*\Delta H_{vap}$

x = mass or moles, depending on what the units of $\Delta H_{vap}$ are.

anonymous · Answer

I don't understand this at all. especially since all Im given is 14.0 g

aaronq · Answer

you'd have to be given $\Delta H_{vap}$ or be expected to look it up in for book.

anonymous · Answer

what does the x and q stand for in this

aaronq · Answer

q is always heat energy

x=mass, or moles, it depends on what $\Delta H_{vap}$ is in units of.