Moles
Stoich & Solutions
Gas Laws
Acid and Bases
Thermo
100
How many Sig Figs are in .5001
4
100
Define Limiting reactant
limits or determines the amount of product formed
100
What are the units for
- pressure
- volume
- temperature
- moles
Pressure: mmHg, atm, torr
Volume: mL, L
Temp: Celsius, Kelvin
moles: N
100
What is the pH for an ACID and a BASE?
Acid: 0-6
7 neutral
Base: 8-14
100
What is the difference between an endothermic and exothermic reaction?
exo: releases heat
endo: absorbs heat
200
What is Avogadro's number?
6.02 x 1023
200
What is the formula for molarity?
** Hint
There are two
# of moles / # of liters
mass / molar mass
divided by
number of liters
200
What is Boyles Law formula?
Also, what is the "saying" that helps us remember it?
p1v1 = p2v2
you BOYLE your PEAS and VEGGIES
200
What is the rule for naming strong bases?
groups 1 and II except Mg(OH)2
200
Is this equation an endothermic reaction or exothermic reaction?
Endo: heat is on the left side of the equation
300
What is the molar mass of Al2(SO4)3
342.14 g
300
what is the difference between:
Saturated solution
Supersaturated Solution
Unsaturated Solution
Saturated: can not hold anymore solution
Supersaturated: holding more solution than it should
Unsaturated: Can hold more solute
300
Charles laws formula:
as Temperature goes up... Volume goes _____
Charlie brown is on TV
v1/t1 = v2/ t2
Temperature goes up
Volume goes up: it is direct
300
Name HClO2
Chlorous Acid
300
What do the letters/variables of q= McAt mean. Include units
q =
M =
C=
T =
q= heat J or C
M = mass grams
C: Specific heat capacity
T = change in Temp: Tf - Ti
400
How many grams are in 3.5 moles of Calcium Carbonate? (CaCO3)
350.31 g . Correct sig figs 350g
400
What three things speed up the rate of reaction?
increase in temperature
increase in Agitation (Stirring)
Increase in surface area
400
The gas in a container has a pressure of 2.6 atm at 35 degrees celsius. What will the pressure be at 250 degrees celsius?
4.4 atm
400
What is the conjugate acid for NO3-
HNO3
400
How many calories of heat are required to raise the temperature of 25 g of aluminum from 4.0 C to 22 C? (Aluminum C = .21)
42 g/c
500
How many molecules are in 14 moles of NO2?
1 mole 6.02 x 1023
8.40x 1024 molecules of NO2
500
How many moles of Al2(SO4)3 can be formed from the reaction 2.5 moles of Copper II Sulfate
2Al+ 3CuSO4 —-> Al2(SO4)3 + 3Cu
.035 moles
500
What pressure will be exerted by 0.0450 mol of gas at 55.0 C if it is contained in a vessel whose volume is 6.5 L?
Pv = Nrt
r = .0821
1.86 atm
500
What is the pH for a solution that has a H+ = 2.48 x 10-11
10.6
500
When 445 J of heat is added to 3,5 grams of olive Oil at 21 degrees C, the temperature increases to 85 degrees c. What is the specific heat capacity of olive oil?
1.98 j