Theoretical Yield

In the reaction pictured, how many moles of hydrogen will be formed when 4 mol of HCl are consumed?

• 6

• 4

• 2

• 8

Tags

NGSS.HS-PS1-7

For the reaction pictured how many moles of nitrogen gas (N2) are required to produce 18 mol of ammonia (NH3)?

• 18

• 9.0

• 4.5

• 36

Tags

NGSS.HS-PS1-7

What mass of NaCl can be produced from 0.75 mol of chlorine gas (Cl2)?

• 0.75 g

• 1.5 g

• 44 g

• 88 g

Tags

NGSS.HS-PS1-7

What mass of carbon dioxide (CO2) can be produced from 25.0 g of calcium carbonate (CaCO3)?

• 25.0 g

• 11.0 g

• 22.0 g

• 56.0 g

Tags

NGSS.HS-PS1-7

If given the mass of methane (CH4) what can be calculated based on the balanced reaction below?

• The mass of the oxygen gas reacting along with the mass of carbon dioxide and water produced.

• Only the mass of carbon dioxide produced.

• Only the mass of oxygen gas reacting.

• Only the mass of ,carbon dioxide and water produced.

Tags

NGSS.HS-PS1-7

In most chemical reactions the amount of product obtained is

• more than the theoretical yield.

• equal to the theoretical yield.

• more than the percent yield.

• less than the theoretical yield.

Tags

NGSS.HS-PS1-7

After a reaction is complete you still have some of one of the reactants left unreacted. That reactant is know as

• primary reactant.

• excess reactant.

• limiting reactant.

• primary product.

Tags

NGSS.HS-PS1-7

The coefficients in a chemical equation represent which type of ratio?

• mass to mass ratio

• mole to mole ratio

• mass to mole ratio

• mole to mass ratio

Tags

NGSS.HS-PS1-7

If % yield is 100% then which of the following is true?

• actual yield is greater than theocratical yield

• actual yield is less than theocratical yield

• actual yield is equal to theocratical yield

• there is no limiting reactant

Tags

NGSS.HS-PS1-7

Which of the following would be investigated in reaction stoichiometry?

• the types of bonds that break and form when acids reacts with metals

• the mass of potassium required to produce a known mass of potassium chloride

• the amount of energy released in chemical reactions

• the mass of hydrogen and oxygen in water

Tags

NGSS.HS-PS1-7