Molecular Chemistry
Molar Volume (gas) is....
(L)gas to moles
How many moles are in the number of molecules below? 1.204 x 10^24
1.51 grams
One mole of a substance cantains Avogadro's Number (6.02 x 10^23) of molecules. 2.0 moles
108 grams
One mole of a substance cantains Avogadro's Number (6.02 x 10^23) of molecules. 1.5 moles
324 grams
How many molecules are in 5 moles of C3H8?
3x10^24 molecules
What is the mass of a sample of Potassium Iodide containing 2 million formula units?
6x10^-16 grams
How many moles are contained in 5.67x10^89 atoms of Calcium?
9.42x10^65 moles
How many atoms are found in a sample containing 5g of Sulfur?
9x10^22 atoms
Atoms to.....
elements
Ionic to.....
nonmetal and metal
Covalent to......
nonmetals
Avagadro is....
paticles (atoms, funs, molecules) to moles
A sample of an unknown compund with a mass of 2.876 g has the following composition: 66.07 percent carbon, 6.71 percent hydrogen, 4.116 g of oxygen. What is the mass of each element in this compound?
...
Determine the number of grams in each in each of the quantities below. 0.50 moles of H2SO4
...
Determine the number of grams in each in each of the quantities below. 2.5 moles of NaCl
...
Determine the number of moles in each of the quantities below. 125 g of H2So4
...
Determine the number of moles in each of the quantities below. 25 g of NaCl
...
Find the percentage composition of a compund that contains 2.63 g of carbon, 0.370 g of hydrogen, and 0.580 g of oxygen in a 3.58 g sample of the compound.
...
How many moles of Magnesiun Bromide contain 5.38 x 10^24 formula units?
...
The empirical formula of a compound is NO2. Its molecular mass is 92 g/mol. What is its molecular formula?
...
How many moles are in the number of molecules below? 7.5 x 10^19
0.00753 grams/mole
How many moles are in the number of molecules below? 3.4 x 10^26
0.256 grams/mole
Calculate the molar mass of CaSO4
136.15 g/mol
How many moles are in the number of molecules below? 6.02 x 10^23
144 grams/mole
How many moles are in the number of molecules below? 2.5 x 10^20
2.51 grams/mole
One mole of a substance cantains Avogadro's Number (6.02 x 10^23) of molecules. 0.75 mole
207 grams
What is the volume of the following gas? 28.0 g of N2
22.4 L N2 gas
One mole of a substance cantains Avogadro's Number (6.02 x 10^23) of molecules. 15 moles
253 grams
One mole of a substance cantains Avogadro's Number (6.02 x 10^23) of molecules. 0.35 mole
272 grams
How many grams of FeCl3 are in 18 moles?
29.19.6 grams/mole
What is the empirical form formula (lowest whole number ratio) of the compounds below? 75% carbon, 25% hydrogen
CH4
Molecules to.....
Covalent Compouds
Funs to.....
Ionic Compounds
What is the empirical form formula (lowest whole number ratio) of the compounds below? 52.7& potassium, 47.3 chlorine
KCl
Molar Mass is....
grams to mole
What are the units for molar mass?
grams/mole