Answered

what is the concentration (m) of a nacl solution prepared by dissolving 21.4 g of nacl in sufficient water to give 350.0 ml of solution? question 6 options: 1.05 1.65 none of these 0.531 0.960



Answer :

Molarity of the NaCl solution is 1.05 M

Molarity is calculated by the formula :

Molarity = number of moles ÷ volume of solution in litres.

Number of moles = mass ÷ molar mass

As per the known fact, molar mass of NaCl is 58.44 g/mol.

Number of moles = 21.4 ÷ 58.44

Performing division on Right Hand Side

Number of moles = 0.37

Volume of solution = 350 ÷ 1000

Volume of solution = 0.35 litres

Molarity = 0.37 ÷ 0.35

Performing division

Molarity = 1.057 M

Therefore, the concentration of given solution is 1.05 M

Learn more about concentration -

https://brainly.com/question/14469428

#SPJ4

Other Questions