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Mole Concept

JEE Main level, numerical answer, medium

Question 1 of 1

The molarity of a solution obtained by dissolving $4.0\,\text{g}$ of $NaOH$ in enough water to make $250\,\text{mL}$ of solution is (in M):

Show answer and solution

Answer: 0.4

Moles of

NaOH = 4.0 / 40 = 0.1\,\text{mol}

. Volume

= 0.25\,\text{L}

. Molarity

= 0.1 / 0.25 = 0.4\,\text{M}

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Chemistry practice question on Mole Concept, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

The molarity of a solution obtained by dissolving 4.0 g4.0\,\text{g}4.0g of NaOHNaOHNaOH in enough water to make 250 mL250\,\text{mL}250mL of solution is (in M):

JEE Main question paper PDF

More Chemistry practice

The molarity of a solution obtained by dissolving $4.0\,\text{g}$ of $NaOH$ in enough water to make $250\,\text{mL}$ of solution is (in M):