Which of the following best defines one mole of a substance?

a. mass, in grams, of each particle of the substance.
b. mass, in grams, of the nuclear us of the substance’s atoms.
c. amount of substance present in one atom of the substance
d. amount of substance present in avogadro‘s number of particles of the substance

D. Amount of substance present in Avogadro‘s number of particles of the substance

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP, contains avogadro's number of particles and weighs equal to the molecular mass of that substance.

A mole is defined as the amount of substance that contains Avogardro number of the substance. Avogadro's number is given by .

particles

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying