Question

A flask that can hold 158 g of water at 4oc can hold only 127 g of ethanol at the same temperature. what is the density of ethanol?

Answer 1

Answer:

0.8037 g/mL is the density of ethanol.

Explanation:

Mass of the water = m = 158 g

Volume of the water in the flask= V

Density of the water = d= 1.00 g/mL

$\density=\frac{Mass}{Volume}$

$1.00 g/mL=\frac{m}{V}=\frac{158 g}{V}$

$V = 158.00 mL$

Now, mass of an ethanol hold by flask, M = 127 g

Volume of the flask = V = 158.00 mL

Density of the ethanol =D

$D=\frac{M}{V}=\frac{127 g}{158.00 mL}=0.8037 g/mL$

0.8037 g/mL is the density of ethanol.

Answer 2

Answer:

• The density of ethanol will be 0.80 g/ml.

Explanation:

   As we know, density of water is 1 g/ml which show that 158 g of water contain 158 ml of water.

                        d = m/v = 258/258 = 1 g/ml

So there will be same volume for ethanol

                  density of ethanol = 127/158 = 0.80 g/ml