<span>7.39 ml
For this problem, simply divide the mass of mercury you have by it's density.
100 g / 13.54 g/ml = 7.3855 ml
Since we only have 3 significant digits in 100., you need to round the result to 3 significant digits. So
7.3855 ml = 7.39 ml</span>
What you have to do is balance the chemical equations to make sure everything is even on both sides. If you want me to help you answer the questions comment back
The molecular weight of the substance.
