Answer : The amount of water lost was, 333.4 grams.
Explanation : Given,
Heat released = 753480 J
Formula used :
[tex]Q=mL[/tex]
where,
Q = heat released = 753480 J
m = mass = ?
L = latent heat vaporization of water = [tex]2260J/g[/tex]
Now put all the given values in the above formula, we get:
[tex]753480J=m\times (2260J/g)[/tex]
[tex]m=333.4g[/tex]
Thus, the amount of water lost was, 333.4 grams.