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by BlastRoom
Practice converting grams to moles, using mole ratios, and converting back to grams.
#chemistry
24 questions
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For 2Mg + O2 → 2MgO, how many grams of MgO form from 12.0 g Mg? Use Mg = 24.31 g/mol and MgO = 40.31 g/mol.
In N2 + 3H2 → 2NH3, what mass of NH3 is produced by 14.0 g N2? Use N2 = 28.02 g/mol and NH3 = 17.03 g/mol.
For 2Al + 3Cl2 → 2AlCl3, find the mass of AlCl3 from 5.40 g Al. Use Al = 26.98 g/mol and AlCl3 = 133.33 g/mol.
Fe2O3 + 3CO → 2Fe + 3CO2. How many grams of Fe form from 20.0 g Fe2O3? Use Fe2O3 = 159.69 g/mol and Fe = 55.85 g/mol.
For 2KClO3 → 2KCl + 3O2, what mass of O2 forms from 24.5 g KClO3? Use KClO3 = 122.55 g/mol and O2 = 32.00 g/mol.
In 4Fe + 3O2 → 2Fe2O3, how many grams of Fe2O3 form from 16.8 g Fe? Use Fe = 55.85 g/mol and Fe2O3 = 159.69 g/mol.
C3H8 + 5O2 → 3CO2 + 4H2O. What mass of CO2 forms from 11.0 g C3H8? Use C3H8 = 44.10 g/mol and CO2 = 44.01 g/mol.
CaCO3 → CaO + CO2. How many grams of CO2 form from 25.0 g CaCO3? Use CaCO3 = 100.09 g/mol and CO2 = 44.01 g/mol.
For CH4 + 2O2 → CO2 + 2H2O, how many grams of CO2 form from 8.00 g CH4? Use C = 12.01, H = 1.01, O = 16.00 g/mol.
2Na + Cl2 → 2NaCl. What mass of NaCl forms from 4.60 g Na? Use Na = 22.99 g/mol and Cl = 35.45 g/mol.
For 2H2O2 → 2H2O + O2, calculate grams of O2 from 17.0 g H2O2. Use H = 1.01 and O = 16.00 g/mol.
2C2H6 + 7O2 → 4CO2 + 6H2O. How many grams of H2O form from 15.0 g C2H6? Use C = 12.01, H = 1.01, O = 16.00 g/mol.
3Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O. What mass of Ca3(PO4)2 forms from 22.2 g Ca(OH)2? Use Ca=40.08, O=16.00, H=1.01, P=30.97.
Zn + 2HCl → ZnCl2 + H2. What mass of H2 forms from 13.1 g Zn? Use Zn = 65.38, H = 1.01, Cl = 35.45 g/mol.
4NH3 + 5O2 → 4NO + 6H2O. How many grams of NO form from 10.0 g NH3? Use N = 14.01, H = 1.01, O = 16.00 g/mol.
For 2Al + Fe2O3 → Al2O3 + 2Fe, find grams of Fe from 27.0 g Al. Use Al = 26.98, Fe = 55.85, O = 16.00 g/mol.
C3H8 + 5O2 → 3CO2 + 4H2O. Which setup converts 20.0 g O2 to grams of CO2?
For 2Al + 3Br2 → 2AlBr3, which setup converts 6.00 g Al to grams of AlBr3? Use AlBr3 = 266.69 g/mol.
2KClO3 → 2KCl + 3O2. Which factor-label setup changes 12.25 g KClO3 into grams of O2?
N2 + 3H2 → 2NH3. Which setup converts 5.00 g H2 to grams of NH3?
CaCO3 → CaO + CO2. What mass of CaCO3 is needed to produce 28.0 g CaO? Use CaCO3 = 100.09 g/mol and CaO = 56.08 g/mol.
For 2H2 + O2 → 2H2O, how many grams of O2 are needed to make 36.0 g H2O? Use O2 = 32.00 g/mol and H2O = 18.02 g/mol.
4Fe + 3O2 → 2Fe2O3. What mass of Fe is required to make 40.0 g Fe2O3? Use Fe = 55.85 g/mol and Fe2O3 = 159.69 g/mol.
2Na + Cl2 → 2NaCl. What mass of Na is needed to produce 29.2 g NaCl? Use Na = 22.99 g/mol and NaCl = 58.44 g/mol.
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20 questions
