CH 3
What is the difference between what makes up an ionic compound and a molecular compound?
Ionic- metal & nonmetal
Molecular- 2+ nonmetal
How many particles are in 1 mole?
6.022 x 1023 particles
What is INCREASING electronegativity trend on the periodic table?
Up and to the right
Is CaF2 ionic or covalent?
Ionic; Metal is present
What is the compound name for the formula, MgCl2
Magnesium chloride
Convert 15.0 grams CO2 to moles
0.341 mol CO2
What is the most electronegative atom on the periodic table?
Fluorine
Convert 0.500 mol CO2 to grams.
22.0 g CO2
Give the formula of the polyatomic ion, Sulfate
SO42-
How many ions are present in 1.75 mol of carbon dioxide?
1.05 x 1024 ions
How many "dots" would we need to properly draw the lewis dot structure for SF4?
34 VE
What is the name of the acid, HNO2(aq)?
Nitrous acid
What is the formula for tin(II) oxide?
SnO
A compound is 50% oxygen and 50% sulfur. What is the empirical formula for this compound?
SO2
Nope :)
0.0250 mol of a compound is added to a flask and has a total volume of 250 mL of solution. What is the molarity of the solution?
0.100 M
Name the compound, PF5
Phosphorus Pentafluoride
What is the concentration of a solution prepared by diluting 35.0 mL of 0.150 M KBr to 250.0 mL?
0.0210 M
What is the molecular shape of Methane?
(CH4)- Tetrahedral
What is the mass percent formula?
Mass percent= (Mass of element/ mass of entire compound) x 100