Question

How much water should be added to 100g of glucose, so as to obtain 24% glucose solution ?​

Answer 1

Answer:

417 g of water

Explanation:

We need 24 % glucose solution.

In 24% glucose solution ,

For each 100g of water 24 g of glucose is present

For each x g of water 100 g of glucose is present

Therefore , x = (100 x 100)/24

x=416.67g

x~417 g

Answer 2

Given,

Mass of glucose = 100 grams

Percentage of glucose in the final solution = 24%

To find,

The amount of water that should be added to get 24% glucose solution.

Solution,

We have to obtain a 24% glucose solution, which means the final solution will contain 24% glucose. In another words,the mass of the 24% of the final solution will be 100 grams.

Now,we have to calculate the percentage of  the solvent in the final solution,

= (100% - 24%) [Let,total solution = 100%]

= 76%

Now,the mass of the 76% of the total solution will be mass of solvent or the mass of water.

So,

Mass of 24% of the solution = 100 grams

Mass of 1%  of the solution = 100/24 grams

Mass of 76% of the solution = 7600/24 = 316.6 grams

Hence, we need to add 316.6 grams of water to obtain 24% glucose solution.