A unit of measurement used in chemistry to express amounts of a chemical substance.
100
If you have 5.5 moles of gas held at a temperature of 213 C in a 15 L container, what is the pressure of the gas?
14.61
100
Define solvent and solute.
Solvent= The dissolving medium Solute= The substance dissolved in a solution.
100
If you have 5.5 moles of gas held at a temperature of 213 C in a 15 L container, what is the pressure of the gas?
14.61
100
Define Stoichiometry
The relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
200
Convert .5 moles Fe to grams
28 grams
200
At standard pressure, the temperature of a sample of liquid water can never be raised above 100 C no matter how long or how much it is heated. Use Kinetic Molecular Theory to explain why this is true.
Means it hit its boiling point. Everything is constant so nothing is changing.
200
How many grams of HCL are required to make 10 L of a .40 M solution?
144g
200
At standard pressure, the temperature of a sample of liquid water can never be raised above 100 C no matter how long or how much it is heated. Use Kinetic Molecular Theory to explain why this is true.
Means it hit its boiling point. Everything is constant so nothing is changing.
200
You have 5 slices of bread and 5 slices of cheese. How many sandwiches can you make, how many slices of bread and cheese are left over?
Made=2 Excess bread=1 Excess cheese=3
300
Convert 142g of water to liters
176.7 L
300
Explain why the volume of a gas decreases when its temperature is decreased.
When the temperature is decreasing, the particles don't move around as much, the particles slow down in motion,causing the volume to decrease.
300
65 mL of a 1.5 M NaOH solution are diluted to a new volume of 500 mL. What is the concentration of the new solution?
.195 M
300
Explain why the volume of a gas decreases when its temperature is decreased.
When the temperature is decreasing, the particles don't move around as much, the particles slow down in motion,causing the volume to decrease.
300
2Rb+__Br2→ 2RbBr If you want to create 19.2g RbBr, calculate the following; The volume of bromine needed to react with excess rubidium.
.06 moles= 1.344L
400
How many atoms are in 5 moles of silver?
3.01 x 10^24 atoms of silver
400
The equilibrium constant for the reaction
2 SO2 (g) + O2 (g) ↔ 2 SO3 (g)
Would be:
K = [SO3]2/[SO2]2[O2]
400
What is the universal solvent?
Water
400
What is the act of increasing (something) in size or volume or quantity or scope?
Expansion
400
How many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 g CuSO4?
Al (s) + CuSO4 (aq) --> Al2(SO4)3 (aq) + Cu (s)
53.23 g Al2(SO4)3
500
How many atoms of hydrogen are in 1 mole of water (H20)?
1.20 x 10^24 atoms of hydrogen
500
The equilibrium constant for the reaction
H2 (g) + I2 (g) ↔ 2 HI (g)
would be:
K = [HI]2/[H2][I2]
500
What are two mixtures not known as solutions?
Colloids and suspensions
500
What is a gas that does not behave completely according to the assumptions of the kinetic-molecular theory