Question

How many moles of carbon are in 10.5 g of ibuprofen?

Options:
Option 1: 0.25 moles
Option 2: 0.50 moles
Option 3: 0.75 moles
Option 4: 1.00 moles

Answer 1

To calculate the number of moles of carbon in 10.5 g of ibuprofen, you need to know the molar mass of ibuprofen.

Step-by-step explanation:

To calculate the number of moles of carbon in 10.5 g of ibuprofen, we need to know the molar mass of ibuprofen. The molar mass of ibuprofen can be calculated by adding up the atomic masses of all the atoms in its chemical formula. Ibuprofen has 13 carbon atoms, so its molar mass can be calculated as follows:

Molar mass of ibuprofen = (13 x atomic mass of carbon) + (18 x atomic mass of hydrogen) + (2 x atomic mass of oxygen)

Once we have the molar mass of ibuprofen, we can use it to convert the mass of ibuprofen to moles:

moles of ibuprofen = mass of ibuprofen / molar mass of ibuprofen

Therefore, to find the number of moles of carbon in 10.5 g of ibuprofen, we need to calculate the molar mass of ibuprofen first.