Question

1. What is the molar mass of Aspirin (C9H8O4)? If you have 360.4 grams of Aspirin, how many moles of Aspirin do you have? How many Aspirin molecules do you have? How many carbon atoms do you have?

Answer 1

Answer:

(a).molar mass=(12×9)+(1×8)+(16×4)

=180.0g

(b).moles of Aspirin

moles=mass(g)÷molar mass

=360.4÷180.0

=2.002moles

(c). molecules of Aspirin

To get molecules just multiply moles of Aspirin by Avocado number.

=2.002×6.022×10^23

=1.206×10^24 molecules

(d) number of carbon atoms

=12×9

=108 carbon