Question

Calculate the molarity of a solution 3.65 gm of hcl is dissolved in 4 litre of solution (at masses h=1,cl=35.5

Answer 1

Answer: 0.025 mol/liter

Explanation:

We know

Molarity = mole of solute/Volume of solution in liter

So here

To calculate moles of HCl(solute):

Molar mass of HCl = 1+35.5 = 36.5 g/mol

Mole of HCl = given mass/molar mass

= 3.65/36.5 = 0.1mol

Now we know

Molarity= mole of solute/volume of solution in litres

Therefore molarity = 0.1/4 = 0.025 mol/liter

Hope you understand the question and best of luck for your future.

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Aakash Maurya

Answer 2

Answer: 0.025

Explanation: Molarity = no.of moles of solute / Volume of solution in L

= (3.65/36.5)/4

=0.025