Balancing Chemical Equations
____ N2 + ____ H2 → ____ NH3
___N2 + __3__H2 --> _2__NH3
What is the conversion factor for particles, atoms, and molecules?
6.02 x 1023 / 1mole or 1mole/6.02 x 1023
Determine the percent of Na in NaCl
39.34% of Na
An ionic bond occurs between a _____ and a _______
metal and nonmetal or cation and anion
A covalent bond occurs between a _____ and a ______
Nonmetal and a nonmetal
___Al + ___O2 --> ___Al2O3
_4__Al + __3_O2 --> _2__Al2O3
How many moles of magnesium is 3.01 x 1022 atoms of magnesium?
0.05 moles of Mg
A compound consists of 5 g of Mg and 17g of oxygen, find the percent composition of Oxygen.
77.27%
phosphorus pentabromide
LiOH
Lithium Hydroxide
___P + ___O2 → ___P2O5
4 P + 5O2 →2P2O5
Convert 8.21 L of Chlorine gas (Cl2) to moles of Chlorine gas.
0.37 moles
Determine the percent of calcium in a compound containing 62g of Ca, 85g of O and 16g of H.
38.04%
sodium carbonate
Na2CO3
CaCO3
Calcium Carbonate
____Zn + ____H2SO4 --> ____ZnSO4 + ____H2
Balanced!
You have a 15 g slab of salt, how many sodium chloride molecules (NaCl) make up the slab?
1.55x1023 molecules
Determine the percent of Oxygen, in a compound containing 1.19 moles of C & 2.38 moles of O.
72.71%
Magnesium Hydroxide
Mg(OH)2
P2S3
diphosphorous trisulfide
___P + ___O2 --> ___P2O5
__4_P + __5_O2 --> __2_P2O5
What would have a larger volume? 4.13 moles of Br2 or 4.12 moles of Cl2?
92.51 L Br2 vs 92.29 L Cl2
Find the percent comp of a phosphorous that has 0.490 mol of gallium and 0.324 mol of phosphorus
22.69%
Zinc (II) acetate
Zn(C2H3O2)2
CoS
Cobalt (II) Sulfide