One has 100.0 grams of water and 45.0 grams of ice in a flask at 0 C. (a) what is the total

volume?

Vtotal = V(ice) + V(water)

= Mi/(rhoi) + Mw/(rhow)

'rhoi' is the ice density, which is something like 0.917 g/cm^3 as I recall. You may have a more accurate value. Mi is the ice mass

The Greek lower case letter "rho" is used for density in most textbooks, but I can't type it here.

'rhow' is the density of water, which is 1.00 g/cm^3. Mw is the water mass

Complete the calculation.

v = 100/1.00 + 45/0.917 = ___ cm^3