Question

E connect Physical Science Related To Chemi Chem 1000-S17: 2020-02 CHEMISTRY Question 22 (of 23) How many nickel atoms are present in 6.2 moles of nickel metal? Give your answer in scientific notation. Enter your answer in the provided box. x 10 elect) atoms of NI MacBook Air

Answer 1

We know, 1 mole of a substance/ gas/ ion contains Avogadro number of substances.

again, Avogadro number = 6.022 * 1023

Now for 6.2 mole Ni metal, the number of Ni atoms present =

6.2 * 6.022 * 1023

= 3.73364 * 1024

So, 3.73364*1024 number of Ni atom is present in 6.2 moles of Ni metal.