Question

a solution is prepared by adding 4 gram of substance A to 46 gram of ethanol calculate the mass persent of solute​

Answer 1

Answer:

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Explanation:

we need to get the total mass of the solution.

The total mass of the solution is given by :

Total mass = Mass of the solute + Mass of the solvent

= 18 + 2 = 20

The mass of the solute = 2

The mass percent of the solute will therefore be given by :

2/20 × 100%

We compute this as follows:

1/10 × 100%

This gives us the following percentage as our answer.

= 10%

The mass percent of the solute is thus 10%