Exam 4 Jeopardy

Organic Chem

100

Define Alkane, Alkene, Alkyne

Alkane - single 

Alkene - double

Alkyne - triple

200

Octane

Lines

300

2-chlorobutane

lots of lines

400

2,4-dimethylcyclohexane

more lines

500

3-methyl-1-pentanol

alcohol

Dilutions

100

If you dilute 175 mL of a 1.6 M solution of LiCl to 1.0L, determine the new concentration of the solution.

SIG FIGS 

0.28 mL

200

You need to make 10.0 L of 1.2 M KNO3. What molarity would the potassium nitrate solution need to be if you were to use only 2.5 L of it?

4.8 M

300

How many liters of 5.0 M copper(II) sulfate solution were added to a solution with an initial volume of 160 mL of water to achieve a 0.30 M copper(II) sulfate solution? 

Use scientific notation

1.04x10^-4 L

400

To what volume should you dilute 133 mL of an 7.90 M CuCl2 solution so that 51.5 mL of the diluted solution contains 4.49 g CuCl2?

1620 mL

500

What volume of 1.59 M NaOH is required to prepare a 5.00 L solution of 0.100 M NaOH?

0.314 L

Acids/Bases

100

Identify Acid/Base/CA/CB

H₂O + CO₃^2- -> HCO₃^- + OH^-

Acid: H2O

CB: OH

Base: CO₃^2-

CA: HCO₃^-

200

Write out the blood buffer equation

What would the new equation be if we added a base to neutralize an acid?

insert equation

300

Identify

HCO₃^- + H₂O -> H₂CO₃ + OH^-

Acid: H₂O

Base: HCO₃^-

CA: H₂CO₃ 

CB: OH^-

400

HNO₃ + NH₃ -> NH₄⁺ + NO₃^-

Acid: HNO₃

Base: NH₃

CA: NH₄⁺

CB: NO₃^-

500

Find the conjugates

HCO₃^- + HPO₄^2- ->

What is the acid/base? 

HCO3- + HPO42- -> CO₃^2- + H₂PO₄^-

Math

100

How many mL of a 25% (m/v) NaOH solution would contain 75 g of NaOH?

300 mL

200

If I make a solution by adding water to 75mL of ethanol until the total volume of the solution 375mL. What is the percent by volume of ethanol in the solution. 

20%

300

You have 200g of a solution that contains 30g of HCl. What percentage of your solution is made up of HCl. 

15%

400

What is the pH of the solution if the [H3O+] conc is 2.5x10^-4

Is it acidic or basic?

3.6, acidic

500

A saline solution, NaCl in water, is 10% (m/v). How many grams of NaCl are required to prepare 35.0mL of this solution?

3.5g

General knowledge

100

What is saturation in a solution?

Unsaturated - Dissolves all solvent

Saturated - Some solvent is visible

Supersaturated - Lots of solvent left (heat=dissolve more)

200

Types of electrolytes

Strong - complete dissociation, lots of electricity (Ionic compounds)

Weak - some dissociation, some electricity

Non - no dissociation, bad electrical conduction

300

Rule for things that dissolve, what dissolves what

Like dissolves like

400

What is an acid/base? What is a strong vs weak acid?

Acid - gives/donates proton

Base - accepts/receives proton

Weak/strong - some/complete dissociation

500

pH scale

<7 - acidic

>7 - basic

=7 - neutral