Question

the kohinoor diamond was one of the largest diamond ever found how many moles of carbon are present in it if it weighs 3300 carat​

Answer 1

"Pro-tip: 1 carat = 200 mg" (milligrams)

So,

3300 carat = x gms

So,

x = 3300 × 200 × 10-³/1

= 660,000 × 10-³

= 660 grams

1 mole carbon is 12 grams carbon

So, x mole carbon is 660 grams carbon

So,

x = 660/12

= 55 moles is your answer.