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?
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Determine the number of grams in each in each of the quantities below. 0.50 moles of H2SO4
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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
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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.
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How many moles of Magnesiun Bromide contain 5.38 x 10^24 formula units?
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The empirical formula of a compound is NO2. Its molecular mass is 92 g/mol. What is its molecular formula?
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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
