Warm Up—3/16/15

1. What is the chemical formula for Calcium phosphate?

2. What is the molar mass for calcium phosphate?

3. What is the percent composition of calcium in calcium phosphate?

Warm Up—3/17/15 and 3/18

1. What is an empirical formula?2. What is a molecular formula?

Warm up—3/19/15

1. What is the chemical formula for sodium oxide?

2. What is the chemical formula for lithium phosphate?

3. What is the molar mass for each of them?

Warm Ups—3/20/15

1. Balance the following chemical reaction:a) Na + Cl2 NaCl

b) HCl + Ca(OH)2 H2O + CaCl2

c) Pb(NO3)4 + Al Pb + Al(NO3)3

Warm Up—3/23/15

1. Calculate the molar mass of H3PO4.

2. How many moles are in 25.2 g of Mg?3. What is the mass of 0.780 mol Ca(CN)2?

Warm Up—3/24/15

1. Balance the following reaction: KNO3 + (NH4)2O K2O + NH4NO3

2. What is the molar ratio for all of the reactants and products in the above reaction?

3. If I start with 4.0 mol of KNO3, how many moles of K2O would be produced?

Warm Up—3/25/15

1. Do you have any questions/topics you want to review?

2. Take out your homework, and silently wait for further instructions.

Warm Up—3/27/15

1. Name all the units you know that measure temperature.

2. What is volume?

Warm Up—3/30/15

1. What is pressure?2. What are three characteristics of a gas?

Warm Up--3/31/15

1. What is Boyle’s law?2. How do you convert degrees Celsius to

Kelvin?3. What is 12 degrees Celsius equal to in Kelvin?

Warm Up—4/7/15

1. What was the mass of the 150-mL beaker and dried copper (from the lab)?

2. What was the mass of the empty 150-mL beaker?

Warm up—4/8/15

1. What is Charles’ law?2. What is the mathematical equation for

Charles’ law?3. What unit must temperature be in for

Charles’ law?

Warm Up—4/9/15

1. What is Gay-Lussac’s law?2. What is the mathematical equation for Gay-

Lussac’s law?3. List all of the pressure units that you know.

Warm Up—4/9/15

1. How do you convert degrees celsius to kelvin?

2. What is 25 degrees celsius in kelvin?

Warm Up-4/10/15

1. What is the combined gas law?2. What units must the temperature be in?3. What must remain constant for the

combined gas law to apply?

Warm Up—4/10/15

1. What is Gay-Lussac’s law?2. What is the mathematical equation for Gay-

Lussac’s law?3. List all of the pressure units that you know.

Warm Up—4/13/15

1. What is the ideal gas law equation?2. What is the ideal gas law constant with units?

Warm Up—4/14/15

1. If I have 72 Liters of gas held constant at a pressure of 3.4 atm and a temperature of 225 K, how many moles of gas do I have?

Warm Up--4/20/15

1. What do you know about acids?2. What do you know about bases?3. Complete and balance the following reaction:

NaOH + H2SO4

Warm Up--4/21/15

1. What is a homogeneous mixture called?2. What is a solute?3. What is a solvent?4. Why is water known as the “Universal

Solvent”?

Warm Up—4/27/15

1. What is concentration?2. What is a dilute solution?3. Convert 2000. mL to Liters.

Warm Up—4/29/15

1. What is molarity equal to?2. What is the molarity of a solution with 2.0

mol of solute in 3000. mL of solution?

Warm Up—4/29/15

1. What are 2 characteristics of an acid?2. What are 2 characteristics of a base?

Warm Up—4/30/15

1. What are 2 characteristics of an acid?2. What are 2 characteristics of a base?

4/30/15

1. If the pH of a solution is 4.2, is it acidic, basic or neutral?

2. What about if the pH is 9.6?3. What is the pH of a neutral solution?

Warm Up—5/1/15

1. What is an Arrhenius acid?2. What is the formula for pH?3. What is an Arrhenius base?4. What is the formula for pOH?

Warm Up—5/5/15

1. What is the chemical formula for hydrochloric acid?

2. What is the name for the following acids?a) H2SO4

b) HFc) HNO2

Warm Up—5/6/15

1. What acid is in vinegar?2. What is concentration of H+ ions measured

in?3. What is a heterogeneous mixture?