Here, we have to find out the given mixture of water and alcohol. It is given, Density of water, ρ1 = 1000 kg∕m3 Density of water, ρ2 = 800 kg∕m3 Volume of water, V1 = 1.9 m3 Volume of water, V2 = 0. 50 m3 We have, =
ρ1V1+ρ2V2
V1+V2
=
1.9×1000+0.5×800
1.9+0.5
=
1900+400
2.4
=
2300×10
24
= 958.3 ~ 950 kg∕m3 That is, the given mixture of water and alcohol is 950 kg∕m3.