What is a mole?
Avogadro's number of anything
What is the sequence of steps from grams to atoms of a molecule?
grams -> moles -> molecules -> atoms
What is the molar mass of PbSO4?
303.3 g/mol
What is the volume occupied by one mole of any gas at standard temp and pressure?
22.4 L
Who won the champions league last year in 2024?
Real Madrid
What is the numerical value of Avogadro's number?
6.022 x 10^23
What amount of volume of a gas is in 1 mole of a gas?
22.4L
What is the molar mass of water?
18.01 grams per mole
An certain amount of hydrogen gas occupies 48 L at STP. How many moles of hydrogen atoms are present?
2.14 moles
What are the names of Mrs. Ervin's two cats?
Phil & Judy
What is an empirical formula?
the simplest whole number ratio of atoms present in a compound.
How many moles are in 4 grams of NaCl? round to nearest 1/100th.
.07 moles
How many grams are in 5 moles of water?
90 grams
What volume will 5 moles of vaporized HCl occupy at standard temperature and pressure?
112 L
I bet you thought this would be an easy question..
What number should be replaced where the x is?
1Ca3(PO4)2 + 3SiO2 + 5C ---> 3CaSiO3 + x CO + 2P
5
What is molar mass?
The mass of one mole of a substance, typically expressed in grams per mole
How many grams of H2 are in balloon holding 44.8L of the gas?
Liters ->moles -> grams
4 grams
How many grams are in 7.5 moles of HCl?
273 grams
How many particles are present in 60 L of gas at standard temperature and pressure?
1.6 x 10^24 particles
H2O is the formula for water, what is the formula for ice?
Where can you find the mass of a whole molecular formula?
The periodic table of elements
How many atoms of Hydrogen are there in 35g of glucose?
grams -> moles -> molecules -> atoms
=2.8E24 atoms x % Hydrogen 12/180= .07
1.9x1024
How many moles are in 700 grams of Cuprite (Cu2H2O)?
4.8 moles
A sample of fluorine gas at STP occupies 70 liters. Determine the number of moles of Fluorine and the mass of that Fluorine in grams.
3.125 moles, 59.24 grams
Tupac or Shakespeare:
"You cannot escape fate. Just as you rose you shall fall, by my hands."
Tupac in "Words of Wisdom"