MOLAR MASS
What is the molar mass of oxygen gas?
32 grams per mole
How many grams are in 5 moles of hydrogen gas?
10.08 grams
How many moles are in 35 grams of sodium?
1.522 moles
42 grams of ____ is 0.75 moles
iron
What was the name of the chemist Avogadro?
Amadeus
What is the molar mass for BP?
41.7855 grams per mole
How many grams are in 3.2 moles of Helium?
12.80 grams
How many moles are in 3.9 grams of calcium?
0.097 moles
3.8 moles of ___ is 248.444 grams
Zinc
What does LD50 stand for?
Lethal dose that can kill 50% of the population.
What is the molar mass of magnesium sulfide? MgS
56.38 grams per mole
How many grams are in 7 moles of MgCl2?
666.477 grams
How many moles are in 327 grams of magnesium sulfide? MgS
5.80 moles
5.7 grams of ___ is 0.63 moles
beryllium
What is the lethal dose of Lead for a 50 kg person? Lead LD= 450mg/kg
22,500 mg
What is the molar mass of CaCO3?
100.0869 grams per mole
How many grams are in 9 moles of aluminium phosphide? AlP
521.6 grams
how many moles are in 560 grams of boron arsenide? BAs
6.53 moles
78 grams of ___ is 0.93 moles
krypton
What are the most toxic substances?
The ones with lower LD50
What is the molar mass of calcium chloride? CaCl2
110.98 grams per mole
How many grams are in 6.3 moles of carbon dioxide? CO2
277.3 grams
How many moles are in 888 grams of calcium chloride? CaCl2
8 moles
462 grams of___ is 3.89 moles
tin
What is the lethal dose of arsenic for a 133.5 pound person? Arsenic LD50=15mg/Kg
910.23 mg