2 years ago

What is the molarity of a solution containing 56 grams of solute in 959 mL of solution?

1 answer:

5 0

Molarity refers to the MOLES of solute per litre of solvent. We're given a volume of solvent, but a mass of solute. We need to convert mass to moles, and the way to do that is using the molar mass of the solute. This question can't be answered unless we know the molar mass of the solute.

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Give two reasons why scientists create models to study atoms.

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A buffer solution is composed of 7.50 mol of acid and 4.75 mol of the conjugate base. If the pKa of the acid is 4.90 , what is t

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Answer:

The correct answer is: pH= 4.70

Explanation:

We use the <em>Henderson-Hasselbach equation</em> in order to calculate the pH of a buffer solution:

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2 years ago

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3 years ago