if you have 380.4 grams of caffine,how many molecules do you have?the formula for caffine is C8H10N402
Since the molar mass of caffeine is=194.19, then we have:
380.4 / 194.19 =1.95891 moles of caffeine. Since 1 mole =6.022 x 10^23 molecules, then:
1.95891 x 6.022 x 10^23 =1.18 x 10^24 molecules.
