Percent Yield

When reacting Na with Cl₂, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?

• 90.4%

• 104%

• 96.15%

• 1.04%

Tags

NGSS.HS-PS1-7

Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.

• 1.16%
• 116%
• 85%
• 76%

Tags

NGSS.HS-PS1-7

What is the formula for percent yield?

Tags

NGSS.HS-PS1-7

Which of the following reactions has the lowest percent yield?

• Theoretical yield 25.7 g; actual yield 23.2 g

• Theoretical yield 42.1 g; actual yield 39.9 g

• Theoretical yield 18.2 g; actual yield 15.6 g

• Theoretical yield 93.4 g; actual yield 87.9 g

Tags

NGSS.HS-PS1-7

What is Percent yield?

• the percent of Carbon in a substance

• the percent ratio of actual yield to the theoretical yield

• the percent ratio of reacted and unreacted substances

• 6.022 x 10^23

Tags

NGSS.HS-PS1-7

48.86 g of cobalt is equal to how many moles of cobalt? (4 SF)

• 2879 moles

• 8.291 moles

• .8291 moles

• .829 moles

What is the molar mass of PbSO₄?

• 303.262 g/mol

• 255.262 g/mol

• 163.872 g/mol

• 372.262 g/mol

7. The amount of product that actually forms when a chemical reaction is carried out in a laboratory is called the _________ yield.

• actual
• theoretical
• percent

Tags

NGSS.HS-PS1-7

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol
• 35.453 g/mol
• 22.990 g/mol
• 58.443 g/mol