How to calculate molar concentration (c) from mass fraction (w) and solution density (ρ)?
The molar concentration (c) equals (1000 × ρ × w) / M, where ρ is the solution density (g/mL), w is the mass fraction of solute, and M is the molar mass of sol…
Syllabus path: Fundamental Chemical Concepts and Calculations › Mole Calculations
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CSCA Chemistry Formula Reference
Formula and explanation
The molar concentration (c) equals (1000 × ρ × w) / M, where ρ is the solution density (g/mL), w is the mass fraction of solute, and M is the molar mass of solute (g/mol). Formula: c = (1000 ho w)/(M) Applicable conditions: Applicable to solutions with known density and mass fraction. Explanation: This is an important conversion formula connecting solution concentration, density, and solute molar mass.
Related tutorial and examples
Mole Calculations
Core Concepts: Mole Calculations This section is the "heart" of chemical calculations. Whether the question asks for mass, volume, or particle count, the path to the solution almost always requires finding the Amount of Substance ( n ) first. Remember the golden rule: "Convert ev…
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