1 / 26

Comprehensive Guide to Molarity and Dilution Calculations in Chemistry

This guide covers essential concepts related to molarity and dilution calculations in chemistry. Key topics include determining the molarity of solutions based on moles or grams of solute and the volume of solvent, as well as using the dilution formula (M1V1 = M2V2) for preparing solutions of desired concentrations. The guide includes worked examples on calculating molarity, dilution requirements, and needed grams of solute, catering to both basic and advanced chemistry learners. Enhance your understanding of solution concentration and preparation for experiments.

ninon
Télécharger la présentation

Comprehensive Guide to Molarity and Dilution Calculations in Chemistry

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. Chemistry Jeopardy

  2. Molarity-100 • The molarity when 4.2 moles of NaCl are dissolved to make 3.0 L of solution. • What is 1.4 M?

  3. Molarity-200 • The molarity when 40 grams of NaOH are dissolved to make 0.500 L. • What is 2 M?

  4. Molarity-300 • The molarity when 59.9 g of KBr are dissolved to make 200 mL of solution. • What 2.5 M?

  5. Molarity-400 • The grams needed to make 250 mL of a 0.15 M solution of CaCl2. • What is 4.16 grams?

  6. Molarity-500 • The volume of a 2.25 M solution made with 60 g of LiF. • What is 1.03 L?

  7. Dilutions-100 • The formula for dilution problems. • What is M1V1=M2V2?

  8. Dilutions-200 • The milliliters of 0.25 M NaOH needed to make 500 mL of 0.10 M NaOH solution. • What is 200 mL?

  9. Dilutions-300 • A solution is prepared by adding 250 mL of 0.70 M K2CrO4 to 400 mL of water. Calculate the molarity of the new K2CrO4solution. • What is 0.27 M?

  10. Dilutions-400 • The molarity when 200 mL of a 0.233 M KCl solution is diluted to 575 mL. • What is 0.081 M?

  11. Dilutions-500 • You have a stock solution of 0.500 M acid, and your lab procedure calls for 1.00 M acid. How can you dilute the stock solution to get 1.00 M? • You can’t, When a solution is diluted, the molarity is less, not more.

  12. Vocabulary-100 • An aqueous solution has __________ as the solvent. • What is water?

  13. Vocabulary-200 • A __________ solution contains more than the amount of solute that should be able to be dissolved at a given temperature. • What is supersaturated?

  14. Vocabulary-300 • Two liquids are said to be __________ if they dissolve in each other. • What is miscible?

  15. Vocabulary-400 • To make a solution, you dissolve the _________ in the ______________. • What is SOLUTE in the SOLVENT?

  16. Vocabulary-500 • A solution of two metals • What is an alloy?

  17. Anything Goes-100 • Will increasing the temperature raise or lower the solubility of a salt? • What is raise?

  18. Anything Goes-200 • The proper name of the flask used to make an accurate molarity solution. • What is a volumetric flask?

  19. Anything Goes-300 • A solution is ___________ if it contains as much solute as can possibly be dissolved under the existing conditions of temperature and pressure. • What is saturated?

  20. Anything Goes-400 • Three ways to make a solute dissolve. • What are increase temperature, stir or shake, increase surface area (grind or crush smaller)?

  21. Anything Goes-500 • How to make a supersaturated solution • What is heat the solution to get more to dissolve, then let it cool?

  22. Other Calculations-100 • How much 2.0 M solution is needed to make 5 L of 1.0 M solution? • What is 2.5 L?

  23. Other Calculations-200 • You are asked to make 1.5 L of 0.25 M nitric acid by diluting concentrated 16 M nitric acid. What volume of the concentrated acid will be required to make the dilution? • What is 23 mL or 0.023 L?

  24. Other Calculations-300 • You need 100 mL of 0.40 M MgSO4. What volume of a stock solution of 2.0 M MgSO4 do you need? • What is 20 mL?

  25. Other Calculations-400 • How many grams of KF are needed to a make 300 mL of a 0.24 M solution? • What is 4.18 g?

  26. Other Calculations-500 • The volume needed to make a 0.75 M solution with 12 g of KOH. • What is 0.285 L or 285 mL?

More Related