Ch.4 - Chemical Quantities & Aqueous ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: How many mL of a 0.155 M KCl solution contain 2.55 g KCl?

Solution: How many mL of a 0.155 M KCl solution contain 2.55 g KCl?

Problem

How many mL of a 0.155 M KCl solution contain 2.55 g KCl?

Solution

We have to determine the volume of 0.155 M KCl solution (in mL) that contains 2.55 g KCl

Molarity is a unit to express solution concentration. It is defined as the number of moles of solute present in 1 L of solution.


<math style="font-family:Arial" xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="22px"><menclose mathcolor="#FF0000" notation="box"><mi mathcolor="#000000">Molarity</mi><mo mathcolor="#000000">&#xA0;</mo><mo mathcolor="#000000">=</mo><mo mathcolor="#000000">&#xA0;</mo><mfrac mathcolor="#000000"><mrow><mi>moles</mi><mo>&#xA0;</mo><mi>of</mi><mo>&#xA0;</mo><mi>solute</mi></mrow><mrow><mi>volume</mi><mo>&#xA0;</mo><mi>of</mi><mo>&#xA0;</mo><mi>solution</mi><mo>&#xA0;</mo><mfenced><mi mathvariant="normal">L</mi></mfenced></mrow></mfrac></menclose></mstyle></math>


To find out how many mL of 0.155 M KCl solution contain 2.55 g KCl, we will need the molar mass of KCl first.


View the complete written solution...