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58.5 g sodium chloride is dissolved in 1 L solution. Molar mass is 58.5 g per mol. What is the molarity?

Answer and explanation

Correct answer: 1 M

The governing concept is molarity, defined as moles of solute per litre of final solution. The number of NaCl moles is n = 58.5 g ÷ 58.5 g mol⁻¹ = 1 mol. Since these 1 mol are present in 1 L solution, M = 1 mol ÷ 1 L = 1 M. Thus A is correct. B and C are incorrect numerical values, while D confuses grams with moles.

Related tags

SolutionsMolaritySodium ChlorideChemistryMolecular Orbital Theory (Mot) Of Homonuclear Diatomic MoleculesMolecular Orbital Theory Mot Of Homonuclear Diatomic MoleculesChemical Bonding And Molecular StructureClass 11 Mcq

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