10th grade Mole ratios from a balanced equation worksheet

Mole ratios from a balanced equation

Grade 10 Science Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Respiration: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O. Glucose has coefficient 1 and CO₂ 6. How many moles of CO₂ form from 0.5 mol of glucose, Bo?
2. 2.

   2H₂ + O₂ → 2H₂O (an equation only). O₂ has coefficient 1 and H₂O 2. How many moles of water form from 3 mol of O₂, Esme?
3. 3.

   Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. CO₂ has coefficient 6 and glucose 1. How many moles of glucose form from 12 mol of CO₂, Jun?
4. 4.

   To find mol O₂ from mol H₂ in 2H₂ + O₂ → 2H₂O, which factor do you use, Kira?

   • 1 mol O₂ ÷ 2 mol H₂
   • 2 mol O₂ ÷ 2 mol H₂
   • 2 mol H₂ ÷ 1 mol O₂
5. 5.

   To find mol O₂ made from mol CO₂ in 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, which factor works, Luz?

   • 2 mol O₂ ÷ 1 mol CO₂
   • 1 mol O₂ ÷ 6 mol CO₂
   • 6 mol O₂ ÷ 6 mol CO₂
6. 6.

   To find mol glucose used from mol O₂ in C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O, which factor works, Milo?

   • 1 mol C₆H₁₂O₆ ÷ 6 mol O₂
   • 1 mol C₆H₁₂O₆ ÷ 1 mol O₂
   • 6 mol O₂ ÷ 1 mol C₆H₁₂O₆
7. 7.

   A plant makes 3 mol of O₂ by photosynthesis (6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂). How many moles of CO₂ did it use, Noah?

   • 18 mol, from 3 × 6
   • 3 mol, from the 6 : 6 ratio
   • 0.5 mol, from 3 ÷ 6
8. 8.

   A runner's cells use 0.1 mol of glucose by respiration (1 glucose : 6 O₂). How many moles of O₂ do they use, Pia?

   • 0.02 mol, from 0.1 ÷ 6
   • 0.1 mol, one O₂ for each glucose
   • 0.6 mol, from 0.1 × 6
9. 9.

   A cake's 0.2 mol of baking soda reacts fully with vinegar (1 : 1 to CO₂). How many moles of CO₂ form, Ren?

   • 1.2 mol, from 0.2 × 6
   • 0.2 mol, from the 1 : 1 ratio
   • 0.4 mol, from the 2 O atoms in CO₂
10. 10.

    In C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O, what does the 1 : 6 between glucose and O₂ count, Ari?

    • Grams: 6 g of O₂ for each gram of glucose
    • Moles or molecules: 6 O₂ for each glucose
    • Atoms: 6 O atoms for each glucose