What is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass

Name: Problem 12, Chapter 9: Fundamentals of General, Organic, and Biological Chemistry
Uploaded: 2022-01-12T10:21:13-08:00
Duration: 1 min 41 s
Channel: John Nicolle
Description: What is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass =337 g / mol ) in 160 mL of solution?

step 1 I in this question we need to find the molarity of the solution so we have the mass of a vitamin

Question

What is the molarity of a solution that contains $50.0 \mathrm{~g}$ of vitamin $\mathrm{B}_{1}$ hydrochloride (molar mass $=337 \mathrm{~g} / \mathrm{mol}$ ) in $160 \mathrm{~mL}$ of solution?

   What is the molarity of a solution that contains $50.0 \mathrm{~g}$ of vitamin $\mathrm{B}_{1}$ hydrochloride (molar mass $=337 \mathrm{~g} / \mathrm{mol}$ ) in $160 \mathrm{~mL}$ of solution?

Fundamentals of General, Organic, and Biological Chemistry

John McMurry, David… 1st Edition

Chapter 9, Problem 12

Instant Answer

Solved by Expert John Nicolle

01/12/2022

Step 1

We can do this by dividing the mass of the solute by its molar mass. The formula for this is: \[ n = \frac{m}{M} \] where $ n $ is the number of moles, $ m $ is the mass of the solute, and $ M $ is the molar mass of the solute. Show more…

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What is the molarity of a solution that contains $50.0 \mathrm{~g}$ of vitamin $\mathrm{B}_{1}$ hydrochloride (molar mass $=337 \mathrm{~g} / \mathrm{mol}$ ) in $160 \mathrm{~mL}$ of solution?

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Key Concepts

Molarity

Molarity is a measure of the concentration of a solution, defined as the number of moles of solute per liter of solution. It allows chemists to relate the amount of a substance present to the volume of the solution in which it is dissolved.

Moles

A mole is a unit that represents a specific number (Avogadro's number, approximately 6.022 x 10^23) of particles, such as atoms or molecules. Converting a mass of a substance to moles involves dividing by its molar mass.

Molar Mass

Molar mass is the mass of one mole of a substance and is usually expressed in grams per mole (g/mol). It serves as a conversion factor when converting between mass and moles.

Unit Conversion

Unit conversion, particularly converting volume from milliliters to liters, is essential in preparing formulas like molarity. Since molarity is defined in terms of liters, any volume measurements must be converted to liters before calculations.

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