Question

11. _____ What amount of carbon dioxide is in 17.6 g of carbon dioxide?

a. 5.87 mol
b. 2.5 mol
c. 0.40 mol
d. 0.55 mol

Answer 1

To find the number of moles of carbon dioxide (CO2) in a 17.6 g sample, we divide the mass by the molar mass of CO2 (44.009 g/mol), which gives us approximately 0.40 mol. Therefore, the correct answer is (c) 0.40 mol.

Step-by-step explanation:

The question is asking to calculate the amount of carbon dioxide in moles for a given mass of 17.6 g of CO2. The molar mass of CO2 is the sum of the molar masses of one mole of carbon (C) and two moles of oxygen (O), which can be calculated as follows: 1x12.011 g/mol for C + 2x15.999 g/mol for O = 44.009 g/mol for CO2. To find the number of moles, we use the formula:

moles = mass / molar mass

moles of CO2 = 17.6 g / 44.009 g/mol = 0.40 mol (approximately)

Therefore, the correct answer to the question is (c) 0.40 mol.

Answer 2

I believe that the answer would be c.

Step-by-step explanation:

First, we find the molar mass of carbon dioxide, which is 44.01 grams.

Then, we must set up a dimensional analysis equation:

`(17.6 g)/(1)` *
`(1 mol)/(44.01 g)`

After setting it up, we multiply across to get
`(17.6)/(44.01)`

Then we divide them to get 0.3999, or about 0.40 moles of carbon dioxide.

Hope I helped!