Open Question
How many moles of Fe(OH)2 are required to produce 7.4 moles of Fe3(PO4)2
3. Chemical Reactions
Stoichiometry
Back3. Chemical Reactions
Stoichiometry
- Multiple ChoiceIn the balanced chemical equation for the synthesis of ammonia, what is the mole-to-mole ratio between nitrogen gas (N_2) and hydrogen gas (H_2)?
- Multiple ChoiceHow many moles of carbon are present in 125.0 g of iron(III) carbonate (Fe2(CO3)3)?
- Multiple ChoiceWhat volume of ammonia, NH3, in liters at STP can be produced from 2.0 kg of hydrogen gas, H2, and an excess of nitrogen gas, N2? (N2 (g) + 3 H2 (g) → 2 NH3 (g))
- Multiple ChoiceWhat is the concentration of CaCO₃ in mol/L after a 0.2557 g sample is reacted with excess HCl, given that the excess HCl is neutralized by 31.62 mL of NaOH with a concentration of 0.0251 mol/L?
- Multiple ChoiceIf a match contained 1.00 g of P, how much P4O10 would form if the following equation was obeyed?
___ KClO3 + ___ P → 10 KCl + ___ P4O10
1views - Multiple ChoiceWhen 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) ⇌ 2AlCl3(s), how many moles of AlCl3 are formed?
- Open Question
What mass of silver oxide, Ag2O, is required to produce 25.0 g of silver sulfadiazine, AgC10H9N4SO2, from the reaction of silver oxide and sulfadiazine?
- Multiple ChoiceA student dissolved 4.00 g of Co(NO3)2 in enough water to make 100.0 mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275.0 mL of a final solution. How many grams of NO3- ion are there in the final solution?1views
- Multiple ChoiceConsider the following balanced reaction. What mass (in g) of CO2 can be formed from 288 mg of O2? Assume that there is excess C3H7SH present.C3H7SH(l) + 6 O2(g) → 3 CO2(g) + SO2(g) + 4 H2O(g)
- Open Question
Explain the concept of mole ratio as used in reaction stoichiometry problems
- Multiple ChoiceAccording to the balanced equation 3 NO2(g) + H2O(l) ⟶ 2 HNO3(aq) + NO(g), how many moles of NO are formed from 8.44 moles of NO2 if there is plenty of water present?
- Multiple ChoiceWhen 10.0 g of glucose (C6H12O6) is completely combusted in excess oxygen, what is the total combined mass of carbon dioxide (CO2) and water (H2O) produced?
- Multiple ChoiceIn the reaction 2 H_2 + O_2 → 2 H_2O, how many grams of oxygen gas (O_2) are required to produce 36.0 grams of water (H_2O)?
- Multiple ChoiceHow many moles of water are produced when 58 g of oxygen gas (O_2) react completely with excess hydrogen according to the reaction: 2 H_2 + O_2 → 2 H_2O?