Show:
CH 8-10
CH 11-14
CH 15-17
6-7
100

What reaction type is this? 

AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq)

Precipitation (precipitate (s) formed from 2 (aq)s)

100

What is the frequency of a 7.43 x 10-5 m wave?

4.04 x 1012 Hz (1/s or s-1)

100

What is the molarity of a solution in which 0.0589 moles of AgNO3 are dissolved in 0.500 L of solution?

0.118 M

100

Is Ms. Cumpston left or right handed?

LEFT! 

200

How much energy is required to heat a 1500 g sample of water from 15.0 C to 37.0 C? The specific heat of water is 4.184 J/gC.


q = 140,000 J

200

Ammonia gas occupies a volume of 67.9 L at a pressure of 632.4 atm. If the pressure were lowered to 356.8 atm, what would the new volume be? 

1.20 x 102 L

200

Contains the maximum amount of solute at a specific temperature. 

Saturated

200

What is Ms. Cumpston's dog's name?

Beautiful sweet angel Winnie

300

Consider the following reaction:

PCl3(s) + 3 H2O (l) --> H3PO3(aq) + 3 HCl(aq)

How many grams of hydrochloric acid can be produced using 25.5 g of water?

51.6 g HCl

mm HCl = 36.46 g/mole     mm H2O = 18.02 g/mole


300

What does polar and non-polar mean?

Polar = unequal sharing of electrons in a bond, non-polar = equal sharing of electrons in a bond.

300

How do you decide if something is soluble in water? 

"Like dissolves like", solvents dissolve solutes that have the same intermolecular interactions. Reasons for something to be soluble in water would be if it is polar and/or has hydrogen bonding. 
300

Where did Ms. Cumpston go to college? 

University of Vermont

400

80.0 g of CH4 and 16.3 g of H2O react according to the following equation:

CH4(g)  +  2 H2O(g)  --> 4 H2(g)  +  CO2(g)

What is the limiting reactant and how many grams of hydrogen can be made?

H2O is limiting, 3.65g H2 

400

Write the electron configuration for sodium.

1s22s22p63s1

400

Determine the volume of 0.300 M HCl needed to titrate 0.75 L of 0.150 M KOH.

0.37 L

400

What color is Ms. Cumpston's current water bottle?

Currently white!

500

 2 HBr + Cl2 --> 2 HCl + Br2      H= -81.1 kJ

When 17.2 g of HBr react with excess Cl2, _________ kJ of energy are ________ (evolved or absorbed)

-8.62 kJ, evolved

500

Draw the lewis structure for CBr2O

Demonstrated by whiteboard. Can't upload pics :/

500

Reaction rate can be increased by increasing (list 3 answers) and explain the reasoning for one.

  1. Concentration: The closer the molecules = more collisions = more opportunities to produce products
  2. Temperature: More heat = more kinetic energy = more collisions = more opportunities to produce products
  3. Surface area (if one reactant is a solid): Surface area can be increased by grinding up a solid into a powder.  More surface area results in more collisions, which results in more collisions that produce products.  
500

Where did Ms. Cumpston travel to for a wedding this year? 

Puerto Rico