Chemistry class

Question

how many grams of caffeine ( molor mass=194.19g/mol are found in 3.0 times 10^23

Answer 1

To find grams, we need to find moles. To find moles from the given number of molecules, we need to use Avogadro's number.

3.0x10²³ molecules caffeine x 1 mol/6.02x10²³ molecules x 194.19 g/mol = g caffeine

Just do the math.