Industrial chemistry

The __________ is the measured amount of product obtained from a reaction.

• percent yield
• theoretical yield
• actual yield
• product

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

Tags

NGSS.MS-PS1-5

What is the molar mass of C₆H₁₂O₆?

• 180.18
• 180.12
• 180.24
• 180.06

How many grams are in 3.3 mol of Potassium Sulfide (K₂S)?

• 363 g

• 454 g

• 238 g

• 132 g

Stoichiometry is the:

• calculation of amounts of substances in a chemical reaction from the balanced equation

• calculation of the mass of substances in a chemical reaction from the chemical equation

• calculation of the number of particles in a physical reaction from the balanced equation

• bane of my existence

What is the most important piece of information necessary to perform a stoichiometric calculation?

• Number of moles

• Number of particles

• Liters of gas

• Mass of reactants

• A balanced chemical equation

What is a stoichiometric mixture?

• A mixture where how much product was made can be calculated
• A reaction with a limiting reactant
• A mixture where there is no limiting reactant or excess reactant
• A reaction with too much of one reactant

Four students tried to balance the following Reaction:

Mg + Fe₂O₃ → MgO + Fe

Which student is correct?

• 3Mg + Fe₂O₃ → 3MgO + 2Fe

• Mg + Fe₂O₃ → MgO₃+ Fe₂

• 2Mg + Fe₂O₂ → 2MgO + 2Fe

• 3Mg + 2Fe₂O₃ → 3MgO + 2Fe

How many moles are in 16.94g of water?

• 16.94 mol H₂O

• 0.9401 mol H₂O

• 305.3 mol H₂O

• 1.063 mol H₂O

N₂ +  3H₂ → 2NH₃ 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

• 6
• 2
• 3
• 1