Question

Can you help me solve this problem???? How many carbon atoms are there in 2.12 molecules of propane? (C3H8)

Answer 1

Since you can't have 2.12 MOLECULES of propane, I assume you mean 2.12 MOLES of propane.

Since there are always 6.022*10^23 molecules in 1 mole of molecules, 2.12 moles will have \[2.12 moles * (\frac{6.022*10^{23} molecules}{1 mole}) = 1.28*10^{24} molecules\] in that many moles of propane.

Since every molecule of prpane contains 3 atoms of carbon, the total number of carbon atoms in 2.12 moles of propane is\[12 moles * (\frac{6.022*10^{23} molecules}{1 mole})*(\frac{3 C atoms}{1 C_3H_* molecule}) = 3.83*10^{24} C atoms\]

Answer 2

Where did you get the 12 moles from?

Answer 3

@JFraser

Answer 4

it's not 12 it's 2,12...2 is not seen..

Answer 5

^right, I type too fast. It should be 2.12 moles, not 12

Answer 6

yes i thought the same..answer is correct)