Question

2 liqids A and B have densities 6kg/lit and 12 kg/lit .find the density of mixtures of two liquids when 2 lit of A is mixed with 1 lit of B and 1 kg of A is mixed with 1 kg of B​

Answer 1

Answer:

A) density = 8 kg/lt

A) density = 18 kg/lt

Explanation:

$density \: = \frac{m}{v} \\ from \: conservation \: of \: mass \\mass \: of \: two \: liquids = mass \: of \: solution \\ d = \frac{(2 \times 6) + (1 \times 2)}{2 + 1} \\ d = \frac{12 + 12}{3} \\ d = \frac{24}{3} \\ d = 8 \frac{kg}{lt} \\ \\ b) \: d = \frac{1}{ \frac{1}{6} } + \frac{1}{ \frac{1}{12} } \\ d = 6 + 12 \\ d = 18 \frac{kg}{lt}$