Calculate how many moles are in 17.0 grams of H2O2
0.500 mol
100
Tin (II) fluoride, SnF2, is used in some toothpastes. It is made by the reaction of tin with hydrogen fluoride according to the following equation.
Sn + 2HF -> SnF2 + H2
117.5 g SnF2
100
What is the formula mass for CCl4?
153.8g/mol
100
concentration
quantity of a substance in a given volume. Expressed as molarity, percent of parts per million.
200
How are moles abbreviated?
mol
200
Convert 25.0 grams of KMnO4 to moles.
0.158 mol
200
If 824g NH3 are created with an excess of oxygen, how many moles of NO are formed?
4NH3 + 5O2 -> 4NO + 6H2O
48.4 mol NO
200
1.50 mol of KClO3 decomposes. How many grams of O2 will be produced?
2 KClO3 ---> 2 KCl + 3 O2
The 32.0 g/mol is the molar mass of O2
200
Empirical Formula
Simplest whole number ratio of atoms in a formula. Many compounds can have the same empirical formula. Example: CH2
300
What does a mole equal?
6.02 x 1023
300
If you have 195.5 g of potassium, how many moles do you have?
5 moles of potassium
300
In photosynthesis, plants use energy from the sun to produce glucose, C6H12O6, and oxygen from the reaction of carbon dioxide and water. What mass, in grams, of glucose is produced when 3.00 mol of water react with carbon dioxide?
90.1 g C6H12O6
300
If 80.0 grams of O2 was produced, how many moles of KClO3 decomposed?
If 80.0 grams of O2 was produced, how many moles of KClO3 decomposed?
1.67 mol of KClO3 decomposed
300
Gram Atomic Mass
Mass of a substance in grams. Equal to the formula mass or or molecular mass.
400
How many liters of gas is one mole?
22.4 liters of gas
400
If you have 4 moles of chromium, how many grams of chromium do you have?
207.96g of chromium
400
how many moles of H2O are produced for every 10 mol of LiOH reacted?
5 mol H2O
400
How can you produce 2.75 mol of KCl. How many grams of KClO3 would be required?
The 122.55 g/mol is the molar mass of KClO3
400
Hydrate
Compound that has water molecules as part of its structure.
500
What does one mole equal?
gram atomic mass from periodic table (1amu = 1g/mol)
500
How many grams are in 1 mole of carbon?
12.01g of carbon
500
How many moles of lithium hydroxide are required to react with 20 mol CO2, the average amount exhaled by a person each day?
40 mol LiOH
500
Precipitates
A solid that is produced as a result of a chemical reaction in solution and that separates from the solution.