Compositional Stoichiometry (Set Up)

What mole ratio would you use to solve the problem below?

How many moles of hydrogen (H) atoms are found in 0.615 mole of CH₃OH?

• 1 mole CH₃OH = 4 mole H atoms

• 1 mole CH₃OH = 3 mole H atoms

• 1 mole H atoms = 4 mole CH₃OH

• 1 mole H atoms = 3 mole CH₃OH

Which is the correct plan to solve the problem below?

How many moles of hydrogen (H) atoms are found in 0.615 mole of CH₃OH?

• mole CH₃OH → mole H atoms → # of H atoms

• mole CH₃OH → mole H atoms

• mole H atoms → mole CH₃OH → # of CH₃OH molecules

• mole H atoms → mole CH₃OH

Tags

NGSS.HS-PS1-7

What mole ratio would you use to solve the problem below?

How many moles of Chlorine Cl in a sample of CCl₄ that contains 4.63 x 10²⁴ molecules of CCl₄?

• 1 mole CCl₄ = 4 mole Cl atoms

• 1 mole CCl₄ = 6.02 x 10²³ Cl atoms

• 4.63 x 10²⁴ mole CCl₄ = 1 mol Cl atoms

• 1 mole CCl₄ = 1 mole Cl atoms

Tags

NGSS.HS-PS1-7

Which is the correct plan to solve the problem below?

How many moles of Chlorine Cl in a sample of CCl₄ that contains 4.63 x 10²⁴ molecules of CCl₄?

• # CCl₄ molecules → mole CCl₄ molecules → mole Cl atoms

• # CCl₄ molecules → mole CCl₄ molecules → mole Cl atoms → # Cl atoms

• # Cl atoms → mole Cl atoms

• mole Cl atoms → mole CCl₄ molecules

Tags

NGSS.HS-PS1-7

What mole ratio would you use to solve the problem below?

How many grams of carbon are in a 0.335 mol of C₃H₈?

• You don't need a mole ratio

• 1 mole C₃H₈ = 3 mole C atoms

• 1 mole C₃H₈ = 24 mole C atoms

• 0.335 mole C₃H₈ = 3 mole C atoms

Which is the correct plan to solve the problem below?

How many grams of carbon are in a 0.335 mol of C₃H₈?

• mass C → mole C → mole C₃H₈

• mole C₃H₈ → mole C → mass C

• mole C₃H₈ → mole C → # C atoms

• mole C → mass C

What mole ratio would you use to solve the problem below?

How many atoms of hydrogen are found in 0.335 mol of C₃H₈?

• 3 mole C₃H₈ = 8 mole H atoms

• 1 mole C₃H₈ = 8 mole H atoms

• 1 mole C₃H₈ = 24 mole H atoms

• 0.335 mole C₃H₈ = 1 mole H atoms

Tags

NGSS.HS-PS1-7

What mole ratio would you use to solve the problem below?

How many atoms of hydrogen are found in 0.335 mol of C₃H₈?

• 3 mole C₃H₈ = 8 mole H atoms

• 1 mole C₃H₈ = 8 mole H atoms

• 1 mole C₃H₈ = 6.02x10²³ mole H atoms

• 0.335 mole C₃H₈ = 1 mole H atoms

Which is the correct plan to solve the problem below?

How many atoms of hydrogen are found in 0.335 mol of C₃H₈?

• mole C₃H₈ → mole H atoms → mass H atoms

• mole C₃H₈ → mole H atoms → # H atoms

• # C₃H₈ molecules → mole C₃H₈ → mole H atoms → mass H atoms

• mass C₃H₈ → mole H atoms → # H atoms

What mole ratio would you use to solve the problem below?

How many O atoms are in 1.24 g of vinegar (CH₃COOH)?

• 1 mole CH₃COOH = 1 mole O atoms

• 1 mole CH₃COOH = 2 mole O atoms

• 1.24 mole CH₃COOH = 2 mole O atoms

• 1 mole CH₃COOH = 1.24 mole O atoms