a.) How many grams of Hydrogen will be contained in a 100.000 g sample of magnesium hydroxide.?
mols MgIOH)2 = grams/molar mass = ?
Then mols H ATOMS (not molecules) will be twice that since there are two H atoms per mol Mg(OH)2.
Then grams H ATOMS will be g = mols x atomic mass. I assume you want g H atoms and not g H molecules (i.e., H2).
c.) How many grams of nitrogen will be contained in a 120.0 g sample of calcium cyanide?
See the previous problem. ______________
Part 3:
d.) How many grams of nickel will be contained in a 400. g sample of nickel (ii) iodide?
See previous problems
f) How many grams of copper will be contained in a 165.0 g sample of copper (i) Sulfide?
See previous problems.
g.) How many grams of sulfur will be contained in a 125.5 g sample of hexaphosphorus pentasulfide?
See previous problems
Someone will be glad to check your answers if you post your work (not just the answers)
Part 1 :
a.) How many grams of Hydrogen will be contained in a 100.000 g sample of magnesium hydroxide.?
c.) How many grams of nitrogen will be contained in a 120.0 g sample of calcium cyanide?
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Part 3:
d.) How many grams of nickel will be contained in a 400. g sample of nickel (ii) iodide?
f) How many grams of copper will be contained in a 165.0 g sample of copper (i) Sulfide?
g.) How many grams of sulfur will be contained in a 125.5 g sample of hexaphosphorus pentasulfide?
1 answer