Post a New Question

Chemistry

posted by .

If it takes three "breaths" to blow up a balloon to 1.2 , and each breath supplies the balloon with 0.060 moles of exhaled air, how many moles of air are in a 3.0 balloon.

Express your answer in moles using two significant figures

Would the answer be 0.38 mol?

  • Chemistry -

    Is it 1.2 L and 3.0 L ? If so,
    1.2 L / 3 breaths = 0.4 L / breath
    (3.00 L) / (0.4 L / breath) = 7.5 breaths
    (7.5 breaths)(0.060 mol/breath) = 0.45moles

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question