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?

Respuesta :

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

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

[tex]\density=\frac{Mass}{Volume}[/tex]

[tex]1.00 g/mL=\frac{m}{V}=\frac{158 g}{V}[/tex]

[tex]V = 158.00 mL[/tex]

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

Volume of the flask = V = 158.00 mL

Density of the ethanol =D

[tex]D=\frac{M}{V}=\frac{127 g}{158.00 mL}=0.8037 g/mL[/tex]

0.8037 g/mL is the density of ethanol.