Question

What is the volume of a solution that has a specific gravity of 1.2 and a mass of 185 g?

Answer 1

`154 ml`

Explanation:

1. Find the density of the solution by the formula:
   `sp. gravity=(rho " solution")/(rho " water at " 4^oC)`
2. Rearrange the formula;
   `rho " solution"=(sp. gravity)(rho " water at " 4^oC)`
   where:
   `rho " water at " 4^oC=1 "g/ml"`
3. Plug in values to find density of solution to the formula in step 2;
   `rho " solution"=(1.2)(1 "g/ml")`
   `rho " solution"=1.2"g/ml")`
4. To find the volume:
   `V=m/(rho)`, plug in values
   `V=(185cancelg)/(1.2cancel(g)/"ml"`
5. The `V=154 ml`