1 / 8

Honors Chemistry Unit 7 – Stoichiometry

Honors Chemistry Unit 7 – Stoichiometry. Lesson 4 - Molarity Book Section: 12-3 Objective: SWBAT determine the molar concentrations of solutions. Agenda: Lesson, Guided Practice, HW. Concentration.

blossom-hines
Download Presentation

Honors Chemistry Unit 7 – Stoichiometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Honors ChemistryUnit 7 – Stoichiometry Lesson 4 - Molarity Book Section: 12-3 Objective: SWBAT determine the molar concentrations of solutions. Agenda: Lesson, Guided Practice, HW

  2. Concentration • When an aqueous solution is made, the concentration of the solution can be measured in multiple ways. • The most common method of measuring concentration in chemistry is the use of molarity (M). • Example: 2.0 M HCl(aq) • “two molar hydrochloric acid solution”

  3. Molarity • Molarity is given by the following equation: • The more dissolved solute in the solution, the higher the concentration. • Solute = lesser quantity in a solution • Solvent = greater quantity in a solution • Salt water: salt is solute, water is solvent

  4. Molarity Problem A 4 g sugar cube (sucrose: C12H22O11) is dissolved in a 350 mL teacup filled with hot water. What is the molarity of the sugar solution? (Ignore the volume of the sugar)

  5. Molarity Problem A 4 g sugar cube (sucrose: C12H22O11) is dissolved in a 350 mL teacup filled with hot water. What is the molarity of the sugar solution? (Ignore the volume of the sugar) 0.033 mol/L = 0.033 M

  6. Molarity Problem Determine the molarity of a solution made by dissolving 20.0 g of NaOH in sufficient water to yield a 482 cm3 solution.

  7. Molarity Problem Determine the molarity of a solution made by dissolving 20.0 g of NaOH in sufficient water to yield a 482 cm3 solution. 1.04 M

  8. HW: #21-23, Read 12-3 • Next Week • Monday: Solution Stoichiometry (12-3), Quiz 7-5 • Tuesday: Titrations (15-2), Quiz 7-6 • Wednesday: Stoichiometry Review, Quiz 7-7 • Thursday: Stoichiometry Exam • Friday: Begin Unit 8: The Periodic Table – History of the Periodic Table (5-1)

More Related