Answer:
Explanation:
The original calculation to find the number of moles which is 
can be rearranged to give the equation 
. Therefore the amount of molecules can be found by 
(multiplying by Avogadro's Number)
Answer:
Explanation:
Silver nitrate grams to moles
1 grams Silver Nitrate is equal to 0.0058867472248402 mole
This assignment seems to be something fun and educational for you, you decide what kind of rock is going to be the easiest for you to do research on and just be creative on how you explain it (:
Good Luck!
Sulfanilamide, an antibacterial drug, was being used safely in the treatment of streptococcal infections.
1) Balanced chemical equation:
2C2H2 + 5O2 ----> 4CO2 + 2H2O
2) State the molar ratios
2 mole C2H2 : 5 mole O2 : 4 mol CO2 : 2 mole H2O
3) Use the periodic table to get the atomic masses of each element and from that the molar masses of O2 and C2H2
Atomic masses:
O: 16 g / mol
C: 12 g / mol
H: 1 g / mol
Molar masses of O2 and C2H2:
O2: 2 * 16 g/mol = 32 g/mol
C2H2: 2*12 g/mol + 2*1g/mol = 26 g / mol
3) Convert 859.0 grams of C2H2 into moles:
859.9 g / 26.0 g /mol = 33.07 mol C2H2
4) State the molar proportion with C2H2 and O2
x mol O2 / 33.07 mol C2H2 = 5 mol O2 / 2 mol C2H2
=> x = 33.07 mol C2H2 * 5 mol O2 / 2 mol C2H2 = 82.68 mol O2
5) Convert 82.68 mol O2 to grams
82.68 mol * 16 g/mol = 1322.9 g O2.
Answer: 1322.9 grams of O2
