Question

1. A solution contains 30 g of sugar dissolved in
370g of water . Calculate the concentration of this solution .

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Answer 1

A solution contains a solid solute (sugar ) dissolved in a liquid solvent (water),so we have to calculate the concentration of this solution in terms of the mass percentage of solute (sugar ) we, Know that :

Concentration of solution =Mass of soluteMass of solution ×100=Mass of soluteMass of solution ×100

here, Mass of solute (sugar )=30g

And ,Mass of solvent (water)=370g

So ,Mass of solution = Mass of solute + Mass of solvent

=30+370

=400 g

Now ,Putting the values Of mass of solute and mass of solution in the above formula formula ,WE get :

Concentration of solution =30400×100=30400×100

=304=304

7.5 per cent (or 7.5% )

THus , the concentration of this sugar solution is 7.5 per cent (or that it is a 7.5 % sugar solution).

Answer 2

Answer:

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