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Answer :
Molarity of solution is 1.43 mol/L
The total number of moles of solute dissolved in 1 liter of solution is known as molarity.
The volume of solution divided by the number of moles of solute is known as molarity (volume should be in L)
A measure of the concentration of a chemical species is called molar concentration (also known as molarity, quantity concentration, or substance concentration).
Mass divided by Molar mass = number of moles
Given,
NaCl weight is 25 gram.
NaCl has a molar mass of 23 + 35.5.
= 58.5
Therefore, number of moles = 25 / 58.5
= 0.43
Molarity = 0.43 / 0.3 (in Liter)
= 1.43 mol/ L
As a result, the supplied solution has a molarity of 1.43 mol/L.
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Molarity is defined as the total number of moles of solute dissolved in 1 litre of solution.
The formula of Molarity is =
Molarity = Number of Moles of solute / volume of solution (in L)
Number of moles = Mass / Molar mass
Given,
Mass of NaCl = 25 gm
Molar mass of NaCl= 23 + 35.5
= 58.5
So, Number of moles= 25/ 58.5
= 0.427
∴Molarity = 0.427/ 0.3 (in Litres)
= 1.42 mol/ L
Hence, molarity of the given solution is 1.42 mol/ L.
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