Open Question
How many moles of oxygen (O2) are required to react completely with 1.67 mol H2?
3. Chemical Reactions
Stoichiometry
Back3. Chemical Reactions
Stoichiometry
- Open Question
How many moles of Fe(OH)2 are required to produce 7.4 moles of Fe3(PO4)2
- Open Question
How many moles of CO2 are produced when 5.80 mol of ethane are burned in an excess of oxygen?
- Open Question
Consider the balanced equation below. What is the mole ratio of PCl3 to PCl5?
- Open Question
What mass of NaCl can be produced by the reaction of 5.0 mol Cl2? 2 Na + Cl2 --> 2 NaCl
- Open Question
During a chemical reaction, atoms are ________.
- Open Question
If you produced 5 moles of Ca3(PO4)2, how many moles of NaCl did you also produce?
- Multiple ChoiceGiven the reaction 3 N2H4(l) -> 4 NH3(g) + N2(g), how many moles of N2H4 are required to produce 2.39 moles of NH3?
- Multiple ChoiceIn the reaction 3 N2H4(l) -> 4 NH3(g) + N2(g), how many moles of N2H4 are required to produce 2.39 moles of NH3?
- Multiple ChoiceThe volume of HCl gas required to react with excess Mg metal to produce 6.82 L of hydrogen gas at 2.19 atm and 35°C is ________ L. 2 HCl (g) + Mg (s) → MgCl2 (s) + H2 (g)
- Multiple ChoiceA 0.846-g sample containing barium ions is completely dissolved in water and treated with excess Na2SO4. 0.746 g of BaSO4 precipitates. What is the mass percent of barium in the sample?
- Multiple ChoiceA 10.0 mL solution of 0.121 M H₂SO₄ is neutralized by 17.1 mL of KOH solution. What is the molarity of the KOH solution?
- Multiple ChoiceA mixture of 1.88 moles of hydrogen and 0.92 moles of oxygen are used in the reaction. According to the balanced chemical equation 2H₂ + O₂ → 2H₂O, how many moles of water would be produced if you used up all the hydrogen?
- Multiple ChoiceA mixture of CaCO₃ and CaO has a mass of 2.5000 g. After heating, the mass of the sample is reduced to 2.016 g due to the decomposition of CaCO₃ into CaO and CO₂. What is the mass percent of CaCO₃ in the original mixture?
- Multiple ChoiceA mixture of NaCl and NaBr has a mass of 2.01 g and is found to contain 0.77 g of Na. What is the mass of NaBr in the mixture?