Question

The density of 0.5 M glucose solution is 1.0900g ml⁻¹. The molality of the solution is
(a) 0.1000
(b) 0.2000
(c) 0.2500
(d) 0.5000

Answer 1

this is ans is the ....... ----------ans is (a)

Answer 2

Answer:

The molarity of the solution is 0.5.

Explanation:

Here in this, we have been given that the density of 0.5M glucose solution is 1.0900g ml⁻¹ and we are asked to find the molarity of the solution.

So, for finding the molarity of the solution we will do as follows:

Mass of 1L (=1000ml)solution = 1000×1.090 = 1090g

Mass of glucose in 1 L = 0.5×180 = 90 g

Mass of water = 1090.0g- 90.0g = 1000 g

Hence, molarity = $\frac{0.5*1000}{1000}$ = 0.5.

Thus, molarity of the solution = 0.5