| Balancing Equations | Empirical and Molecular Formula |
|---|---|
|
___ SnO2 + ___ H2 → ___ Sn + ___ H2O
SnO2 + 2 H2 → Sn + 2 H2O
|
What is the empirical formula of C2H6O2?
CH3O
|
|
__ KOH + __ H3PO4 → __ K3PO4 + __ H2O
3 KOH + H3PO4 → K3PO4 + 3 H2O
|
A compound with an empirical formula of C2OH4 and a molar mass of 88 grams per
mole. What is the molecular formula of this compound?
C4O2H8
|
|
__ KNO3 + __ H2CO3 → __ K2CO3 + __ HNO3
2 KNO3 + H2CO3 → K2CO3 + 2 HNO3
|
A compound with an empirical formula of CFBrO and a molar mass of 254.7 grams
per mole. What is the molecular formula of this compound?
C2F2Br2O2
|
|
____ NH3 + ____ H2SO4 -> ____ (NH4)2SO4
2 NH3 + 1 H2SO4 -> 1 (NH4)2SO4
|
Rubbing alcohol was found to contain 60.0 % carbon, 13.4 % hydrogen, and the
remaining mass was due to oxygen. What is the empirical formula of rubbing alcohol?
C3H8O
|
|
___C12H26+___O2 -> ___ CO2+H2O
2 C12H26+37 O2 -> 24 CO2 + 26 H2O
|
An unknown compound was found to have a percent composition as follows:
47.0 % potassium, 14.5 % carbon, and 38.5 % oxygen. What is its empirical formula? If the true molar mass of the compound is 166.22 g/mol, what is its molecular formula?
K2C2O4
|
Support Us on Ko-fi