Naming Ions/ Ionic Compounds/Molecular/Acid and Bases
Writing Formulas
Mole to atoms and Molar Mass
Mole-Mass and Mole-Volume Relationships
Percent Composition and Chemical Formulas
100
Name the ion formed by Lead, (lost 4 electrons)
What is Lead (IV) ion
100
Give the formula for ammonium ion
What is NH4+
100
What is the molar mass of H2O
What is 18 g/mol
100
find the number of moles in 0.370 g of boron
What is 0.0343 mol B
100
calculate the percent by mass of nitrogen in NH3
What is 82.4%
200
Name the ion formed by sulfur
What is Sulfide ion
200
Give the formula for magnesium hydroxide
What is Mg(OH)2
200
Find the molar mass of PCl3
What is 137.5 g/mol
200
calculate the mass in grams of 2.50 mol of iron(II) hydroxide
What is 225 g Fe(OH)2
200
calculate the percent composition of C2H6
What is 80% C and 20% H
300
Name ZnS
What is Zinc Sulfide
300
Give the formula for chromium (III) nitrite
What is Cr(NO2)3
300
what is the mass of 1 mol of sodium hydrogen carbonate
What is 84 g
300
What is the volume of 0.00320 mol of CO2
What is 0.0717 L CO2
300
calculate the mass of hydrogen in 350 g C2H6
What is 70 g H
400
Give the name for PCl3
What is phosphorous trichloride
400
Give the formula for iodine heptafluoride
What is IF7
400
How many moles is 2.80 E24 atoms of silicon?
What is 4.65 mol Si
400
At STP, how many moles are in 67.2 L of SO2
What is 3 mol SO2
400
What is the molecular formula of a compound whose molar mass is 60 g/mol and its empirical formula is CH4N
What is C2H8N2
500
Give the name for H2SO3
What is nitric acid
500
give the formula for beryllium hydroxide
What is Be(OH)2
500
Propane is a gas used for cooking and heating. How many atoms are in 2.12 mol of propane (C3H8)
What is 1.40 E25 atoms
500
A gaseous compound composed of sulfur and oxygen has a density of 3.58 g/L at STP. What is the molar mass of this gas?
What is 80.2 g/mol
500
1,6-diaminohexane is used to make nylon. what is the empirical formula of this compound if its percent composition is 62.1% C, 13.8% H, and 24.1% N?
What is C3H8N