Avogadro's number is equal to ____?
6.022 x 10 23 particles, molecules, atoms
Calculate how many moles are in 17.0 grams of H2O2
0.500 mol
Tin (II) fluoride, SnF2, is used in some toothpastes, according to the following equation. Sn + 2HF -> SnF2 + H2 .What is the mole to mole ratio of Tin and Hydrogen fluoride?
1:2
NaBr + H3PO4 --> Na3PO4 + HBr
Double replacement
What is the mass of one mole of an atom?
atomic mass
The unit representing the amount of substance.
mole
Convert 25.0 grams of KMnO4 to moles.
0.158 mol
If 824g NH3 are created with an excess of oxygen, how many moles of NO are formed? 4NH3 + 5O2 -> 4NO + 6H2O
48.5 moles
C2H4 + O2 --> CO2 + H2O
combustion
The process of cancelling units using with the help of dimensions and units of measurement.
Dimensional Analysis
How are moles abbreviated?
mol
If you have 195.5 g of potassium, how many moles do you have?
5 moles of K
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 grams
H2O + SO3 --> H2SO4
Synthesis
Substances that enters into and is altered in the course of a chemical reaction. Located on the left side of an equation.
Reactants
Al + O2 --> Al2O3
What's the mole to mole ratio of aluminum to oxygen gas?
4:3
If you have 4 moles of chromium, how many grams of chromium do you have?
207.96g of chromium
How many moles of H2 reacts for every 10 mol of LiOH in their reaction to produce water?
5 moles of H2
PbSO4 --> PbSO3 + O2
Decomposition
Are species formed in a chemical reaction. Located on the right side of the equation.
Products
N2 + H2 →
The possible product is..
NH3
How many grams are in 1 mole of carbon?
12 grams
How many moles of lithium hydroxide are required to react with 20 mol CO2 to produce Lithium carbonate and water?
40 mol
Mg + Fe2O3 --> Fe + MgO
Single replacement
A branch of chemistry that deals with the application of the laws of definite proportions and of the conservation of mass and energy to chemical activity.
Stoichiometry