Question

the density of 85% phosphoric acid is 1.70 g/ml.what is the volume of a solution that contains 17 g phosphoric acid

Answer 1

Answer:

11.76 mL

Explanation:

85% of phosphoric acid which is 17g

,so 17 g is 85% of the total mass

85%×m=17

m=(17×100)÷85

m=20

[m is Total mass of solution]

D=m÷v

1.7=20÷v

v=20÷1.7

v=11.76

Answer 2

Answer:

volume of solution = 11.76cm^3

Explanation:

density=mass/volume

mass=density x volume

given, Density = 1.7g/cm^3

Let reqd volume be v

mass of solution = 1.7 x v

mass percentage = (mass of solute/mass of solution) x 100

85= (17/1.7v ) x 100

85= v x 1000

==> v= 11.76 cm^3

Hope you have understood