Question

find the above plzlzzzz if u answer this i will make u brainlist!! :)​

Answer 1

Answer:

Rajesh is the correct answer and it is the correct

Answer 2

Answer:

$10$ % > $9.091$ %, Therefore, Sarika made a more concentrated solutions in % mass.

Step-by-step explanation:

Students were asked to prepare a 10% (Mass/Mass) solution of sugar in water.

Mass by Mass percentage  $=\frac{Mass of Solute}{Mass of Solution} . 100$

Ramesh dissolved 10 g of sugar in 100 g of water.  Therefore, the mass of his solution was (10+100) g = 110 g.

And resultant solution concentration $=\frac{10}{110} . 100$% $= 9.091$%

While Sarika prepared it by dissolving 10 g of sugar in water to make 100 g of the solution.

For Sarika, resultant solution concentration $=\frac{10}{100} . 100$% $= 10$%

Since, $10$ % > $9.091$ %, Therefore, Sarika made a more concentrated solutions in % mass.