Mole Ratios & Mole to Mole Calculations
9 months ago
john_boren_31436
Save
Edit
Host a game
Live GameLive
Homework
Solo Practice
Practice
10 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    What is a mole ratio?

    answer choices

    An animal that burrows underground.

    How many moles of reactant are used up in a chemical reaction.

    The ratio of a reactant / product to a different one - compared by the number of particles.

    The process by which we multiply fractions by using numbers from a chemistry problem.

  • Question 2
    30 seconds
    Q.

    Where are the numbers for a mole ratio found?

    answer choices

    They are part of the chemical formulas for the reactants / products.

    They are given in the problem.

    They are found on the periodic table for those elements.

    They are found as coefficients in the reaction's balanced chemical equation.

  • Question 3
    30 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    Ethane (C2H6) combusts in the above reaction. What is the mole ratio of ethane to oxygen gas?

    answer choices
  • Question 4
    30 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    Ethane (C2H6) combusts in the above reaction. What is the mole ratio of carbon dioxide to water?

    answer choices
  • Question 5
    30 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    A problem asks how many moles of oxygen gas are needed to react completely with 6 moles of ethane (C2H6). What is the first step in setting up the problem?

    answer choices
  • Question 6
    30 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    A problem asks how many moles of oxygen gas are needed to react completely with 6 moles of ethane (C2H6). What is the second step in setting up the problem?

    answer choices
  • Question 7
    30 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    A problem asks how many moles of oxygen gas are needed to react completely with 6 moles of ethane (C2H6). What is the final answer for this problem?

    answer choices

    13 mol C2H6

    3 mol O2

    21 mol O2

    42 mol O2

  • Question 8
    120 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    New problem: If 16 moles of carbon dioxide are formed by this reaction, how many moles of water were also produced?

    answer choices

    4 mol H2O

    6 mol H2O

    24 mol H2O

    96 mol H2O

    384 mol H2O

  • Question 9
    120 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    New problem: If 3.5 moles of oxygen gas are used up as ethane combusts completely, how many moles of carbon dioxide are produced?

    answer choices

    0.5 mol CO2

    0.57 mol CO2

    2.0 mol CO2

    3.0 mol CO2

    3.5 mol CO2

  • Question 10
    120 seconds
    Q.

    2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

    New problem: How many moles of ethane (C2H6) are required to produce 13.5 moles of water from the above reaction?

    answer choices

    4.5 mol C2H6

    27 mol C2H6

    40.5 mol C2H6

    81 mol C2H6

    162 mol C2H6

Report Quiz
Join a game