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Molar Concentration Calculator
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Molar concentration means the number of moles of solute present is one litre of solution. Molar Concentration Calculator calculates the molar concentration of solute in the solution.

## Steps for Molar Concentration Calculator

Step 1 :

Read the problem and list out the given quantities.

Step 2 :

The Molar Concentration is given by the formula:
Ci = $\frac{n_{i}}{V}$

Where Ci = Molar Concentration,
ni = no of moles present,
V = Volume of the solution.

Substituting any of the two given quanties among the three, we get the desired quantity.

## Problems on Molar Concentration Calculator

1. ### What is the Molar concentration of a solution containing 50g of Sodium chloride in 2 litres of water?

Step 1 :

One mole of sodium Chloride is 58.5 grams.
So 50 gms of Sodium chloride = $\frac{50}{58.5}$

No of moles present ni = 0.85 moles,

Volume of solution V = 2 litres.

Step 2 :

The Molar Concentration is given by the formula:
Ci = $\frac{n_{i}}{V}$

= $\frac{0.85}{2}$
= 0.425 moles per litre.

The Molar Concentration is 0.425 moles per litre.

2. ### Calculate the Molar concentration of KOH in 5 litres of solution?

Step 1 :

given: No of moles of KOH = 2.75 moles

Volume of solution = 5 litres.

Step 2 :

Molar Concentration of KOH = $\frac{No\ of\ moles\ of\ KOH}{Volume\ of\ solution\ in\ litres}$
= $\frac{2.75\ moles}{5 L}$

= 0.55 M.