Periodic Knowledge
An atom has 97 protons in its nucleus. Name this element
Berkelium
What units are associated with molar mass
g/mol
What is molarity a measure of?
concentration
How many moles of sodium are in 1000 grams
43.5 moles
What charge does a strontium ion have?
+2
What is the molar mass of carbon
12 g/mol
6 moles of table salt are dissolved into a 2 liter bottle of water. Find the molarity
3M
How many seconds make up 2.5 hours?
9000 seconds
Name a nonmetal that is liquid at room temperature.
Bromine
What is the molar mass of HF?
20 g/mol
9 grams of beryllium are dissolved in 10 liters of water. Find the molarity
.1M
How many grams make up 3 moles of beryllium fluoride?
141 grams
Which nonmetal is heaviest?
Radon
What is the molar mass of ammonia
17 g/mol
A 6 liter solution has a molarity of 7M. How many moles of solute are present?
42 moles
Which is heaviest, 1 mole of sodium sulfite, 1 mole of sodium sulfate, or 1 mole of sodium sulfide?
1 mole sodium sulfate
How many electrons are in a sodium ion?
10
Wat is the molar mass of Iron Oxide
not enough info
A 6 liter solution has a molarity of 2M.
If we add another 6 liters of pure water to the solution, what is the new molarity?
1M
How many grams make up 17 moles of carbon dioxide?
748 grams