Please get a text book and read pages 450 through 454.

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Please get a text book and read pages 450 through 454. Entrance Ticket 2/25/15 Please get a text book and read pages 450 through 454. 1.) Describe what a solution is (use words like: solute, solvent, and homogeneous) 2.) Describe what dissolving is… (at the molecular level) 3.) What is an aqueous solution (aq)? Homework: 16.1 #3-6

Please have out: Homework: 16.1 #3-6 Do you have any questions from the homework?

What’s this?!

-Read 15.1 and use the text to help you with the study guide. Water! Water is a unique substance that has extreme importance. We have looked at water before, but we need to review, refresh and explore deeper! -Read 15.1 and use the text to help you with the study guide.

You need a text book today! Entrance Ticket 2/27/15 You need a text book today! 1.) What are some factors that affect solubility? 2.) What does it mean when a solution is saturated? 3.) What is an electrolyte? Homework: Add 16.2 #16-20, 23 to your 16.1 homework

Entrance Ticket 3/2/15 1.) What is the molarity (M) of a solution of NaOH (aq) that has a volume of 3.4 L and has 85 g of NaOH dissolved? (the molar mass of NaOH is 40 g/mol) 2.) What mass of HCl is needed to create 6.7 liters of a 0.50 M solution?

Entrance Ticket 3/3/15 1.) How many moles of HCl would need to be dissolved into a 1.2 L solution to make it 3.0 M? 2.) How many grams of HCl would this be?

Entrance Ticket 3/4/15 1.) What is the molarity (M) of a solution of NaOH (aq) that has a volume of 2.75 L and has 3.0 moles of NaOH dissolved? 2.) If you have 365 mL of acetone solution that is 5%, how much acetone is in it?

Entrance Ticket 3/4/15 1.) M = 3.0 mol / 2.75 L M = 1.1 mol/L 2.) 365 mL x .05 = 18 mL acetone

Entrance Ticket Cont… 3.) If you have 250 mL of a 12% HCl solution, what is the volume of the HCl that is dissolved? 4.) Name three factors that can affect solubility. 5.) What is the volume in liters of a 3.0 molar solution that has 18 moles of solute dissolved?

Entrance Ticket Cont… 3.) 250 mL x .12 = 30 mL HCl 4.) Solubility is affected by: temperature, agitation, pressure, surface area 5.)3.0 mol/L = 18 mol / x x = 18 mol / 3.0 mol/L x = 6 L

Ice Cream Pre-lab 1) What is boiling point elevation? Why does it happen? 2) What is freezing point depression? 3) What do both of these concepts have in common?