1023 / 21 = 48.71429
9.02*1023 (molecules) divided by 6.022*1023 (molecules per mole) = 1.5 moles of ANY thing
1
K divided by 21 divided by N is equivalent to divided by?
0.381
21 divided into 0.14 = 149.99999999999997
21
Assuming that "9.61 X 1023" means what is written when suitable fonts are available as 9.61 X 1023, the answer is the given number divided by Avogadro's Number or 1.60 moles, to the justified number of significant digits.
183
21
0.0167
0.0014
30