xraystephosbo xraystephosbo

02-01-2024
Chemistry

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What is the molarity of a 3.0 L solution that contains 0.45 moles of solute? A. 0.15 M B. 15M C. 6.7M D. 140M E. 0.45M

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1Eliana 1Eliana

02-01-2024

Answer

A. 0.15M

Method

litres = dm³ (standard units)

mol/dm³ is the standard unit form molarity (also wrotten as M)

concentration (molarity) = moles / volume

0.45 ÷ 3 = 0.15 M

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