Molecular Geometry
What is the bond angle(s) in a trigonal planar compound?
120 degrees
What is the name for NaNO3?
Sodium Nitrate
What is the percent composition of Hydrogen in HCl
2.8%
How many moles are in 15 grams of Lithium?
2.2 moles
An oxide of chromium is found to have the following % composition: 68.4% Cr and 31.6% O. Determine the empirical formula.
Cr2O3
What is the electron geometry of CH4?
Tetrahedral
What is the formula for Cobalt (III) Telluride?
Co2Te3
What is the percent composition of Oxygen in NaOH?
40%
How many grams are in 11.9 moles of Chromium?
619 grams
The percent composition of a compound was found to be 63.5% silver, 8.2% nitrogen, and 28.3% oxygen. Determine its empirical formula.
AgNO3
What is the molecular geometry of PCl5?
Trigonal Bipyramidal
Tetraarsenic Decoxide
What is the percent composition of Nitrogen in N2S2?
30.4%
How many atoms are in 9.8 grams of Calcium?
1.44 x 1023 atoms
What is the empirical formula of a compound that contains 0.783g of carbon, 0.196g of hydrogen, and 0.521g of oxygen.
C2H6O
What is the bond angle(s) of a compound with the see-saw shape?
90 and 120 degrees
HBrO4
What is the percent composition of Oxygen in Al2(SO4)3?
56.1%
How many molecules are in 68 grams of Copper (II) Hydroxide?
4.22 x 1023 molecules
A 170.00g sample of an unidentified compound contains 29.84g sodium, 67.49g chromium, and 72.67g oxygen. Determine its empirical formula.
Na2Cr2O7
What is the molecular geometry of ClBr5?
Square Pyramidal
Ruthenium (VIII) Phosphite
8.1%
How many atoms of Oxygen are in 929.1 grams of Mn3(SO4)7?
1.87 x 1025 atoms of Oxygen
A 60.00g sample of tetraethyl lead, a gasoline additive, is found to contain 38.43g lead, 17.83g carbon, and 3.74g hydrogen. Determine its empirical formula.
PbC8H21