Holy Moly!
What is the molar mass of H20?
18.02 g/mol
What must you calculate first to convert grams of a substance to moles?
Molar Mass
If volume decreases at a constant temperature, what happens to pressure
It increases
Is a process where heat is absorbed from the surroundings called endothermic or exothermic?
Endothermic
What is the difference between an Arrhenius acid and a Bronsted-Lowry acid?
Arrhenius acids produce H* ions in water, while Bronsted-Lowry acids donate protons
How many moles are in 45g of NaCl
0.77 moles
What is the "Limiting Reactant"?
The reactant is used up first.
What happens to gas pressure if you double the temperature?
It doubles
What is specific heat capacity?
Energy to change temperature.
What is a neutralization reaction?
A reaction between an acid and a base that produces water and a salt
A compound is 80% Carbon and 20% Hydrogen. What is its empirical formula?
CH3
How many liters does 1 mole of any gas occupy at STP?
22.4 L
Solve for n: How many moles are in 22.4L of gas at STP?
1.0 mole
what is the specific heat capacity of liquid water?
4.814 J/g°C
What pH values are considered acidic, neutral, and basic?
Acidic: below 7, neutral: 7, Basic: above 7
Calculate the % composition of oxygen in CO2
72.7%
If you produce 45g of product, but the theoretical yield was 50g, what is the % yield
90%
Ideal Gas Law: Calculate P for 0.5 moles at 273K in 22.4L.
0.5 atm
If you double the mass of water being heated, what happens to the amount of heat required to reach the same temperature?
It doubles
Why is water considered amphoteric?
Water can act as both an acid and a base
If you dilute 100mL of 2.0M HCl to 500mL, what is the new molarity?
0.4 M
In 2H2 +O2 ---> 2H2O, what is the mole ratio of H2 to H20?
2:2 ( 1:1)
Combined Gas Law: P=1, V=2, T=100. Find V if P=2, T=200.
2.0 L
Calculate the heat for 10g of water heated by 10°C?
418 Joules
How do acids and bases affect indicators like litmus paper?
Acids turn blue litmus red, while bases turn red litmus blue