How many moles of gold are there in 4.54 x 10^22 atoms of gold

0.075moles

Explanation:

1 gold gives 6.022×10^23atoms

X gold gives 4.54×10^22 atoms

Cross multiply

6.022×10^x=4.54×10^22

Divide both sides by 6.022×10^23

X=0.075 moles

the answer is definitely c.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.