Question

Calculate the concentration of solution which contains 2.5 g of salt dissolved in 50 g of water

Answer 1

$\bf \large \it \: Hey \: User!!! \:$

given the mass of solute (salt) = 2.5 g

and mass of solvent (water) = 50g

as we know that mass of solution = mass of solute + mass of solvent
= 2.5 + 50
= 52.5g

concentration of the solution = (mass of solute/mass of solution) × 100
= (2.5/52.5) × 100
= 250/52.5
= 4.76% (approximately)

$\bf \large \it \: Cheers!!! \:$

Answer 2

first u have to add the mass, that will be 2.5+50=52.5

then use the formula, mass of solute÷ mass of solution × 100

that will be = 2.5÷52.5×100= 4.76%

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