图甲中量筒内盐水的体积为V=80mL=80cm 3;
读图可知,烧杯和剩余盐水总质量为m=50g+5g+1.2g=56.2g;
盐水的密度ρ=
m
V =
144.2g-56.2g
80c m 3 =1.1×10 3kg/m 3.
故答案为:80;56.2;1.1×10 3.
图甲中量筒内盐水的体积为V=80mL=80cm 3;
读图可知,烧杯和剩余盐水总质量为m=50g+5g+1.2g=56.2g;
盐水的密度ρ=
m
V =
144.2g-56.2g
80c m 3 =1.1×10 3kg/m 3.
故答案为:80;56.2;1.1×10 3.