How many milliliters of water must be added to 350 mL of 0.840 M HCI to dilute the solution to...
Question:
How many milliliters of water must be added to 350 mL of 0.840 M HCI to dilute the solution to 0.250 M?
Molar Concentration:
Mixtures of two or more substances are prevalent throughout chemistry, with solutions being the most common. A solution is a homogeneous mixture in which one or more substances are dissolved in another substance. The dissolved substances are the solutes and the substance performing the dissolution is the solvent. If liquid water is the solvent, then this is called an "aqueous" solution. All solutions have a uniform composition of the solutes and solvent together. Therefore you can define a parameter called the solute concentration, which represents the quantity of the solute in a given quantity or volume of the solution. In molar concentration this is the moles of the solute per liter of solution.
Answer and Explanation: 1
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First we determine the moles of HCl present in the given volume of the stock (0.840 M) HCl solution:
- Volume of stock solution = {eq}V_1 = 0.350 L...
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Chapter 8 / Lesson 4What is molarity? What is molality? Compare molarity vs molality by viewing molality and molarity formulas, how to calculate molarity and molality, and examples.