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?

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

we have 1.2 L and 3.0 L

therefore
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

Well, if blowing up a balloon is considered a breath-taking experience, then blowing up a 3.0 balloon must be truly breathtaking! Now, let's do some math, my friend. If it takes 3 "breaths" to blow up a balloon to 1.2 , and each breath supplies the balloon with 0.060 moles of exhaled air, then we can calculate the total number of moles of air in a 3.0 balloon by multiplying the moles per breath by the number of breaths.

0.060 moles/breath * 3 breaths = 0.18 moles

Therefore, the answer is 0.18 moles (not 0.38 moles, my friend). Keep blowing up those balloons and keep breathing!

To find the number of moles of air in a 3.0 L balloon, we can use the given information that it takes three "breaths" to blow up a balloon to 1.2 L, with each breath supplying 0.060 moles of exhaled air.

First, let's determine the number of "breaths" it would take to fill a 3.0 L balloon:
3.0 L balloon ÷ 1.2 L per breath = 2.5 breaths

Since each breath supplies 0.060 moles of air, we can calculate the total moles of air in a 3.0 L balloon:
2.5 breaths × 0.060 moles per breath = 0.15 moles

Therefore, the answer is 0.15 mol, not 0.38 mol.

To find the number of moles of air in a 3.0 L balloon, we can use the concept of stoichiometry.

First, let's determine the number of moles of air supplied by each breath. According to the given information, each breath supplies the balloon with 0.060 moles of exhaled air.

Next, we need to determine how many breaths are required to blow up a 1.2 L balloon. It is stated that three "breaths" are needed for this.

Now, we can set up a proportion to find the number of moles of air in a 3.0 L balloon:

(0.060 moles / 1.2 L) = (x moles / 3.0 L)

By cross-multiplying and solving for x, we find:

x = (0.060 moles / 1.2 L) * 3.0 L

x ≈ 0.15 moles

Therefore, the number of moles of air in a 3.0 L balloon is approximately 0.15 moles, rounded to two significant figures.

So, the answer is not 0.38 mol, but rather approximately 0.15 mol.