How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Second option

Explanation:

Number of atoms = Number of moles x Avogadro's Number

So first we need to find the number of moles in 97.22 grams of Mg.

Atomic Mass of Mg = 24

Number of moles = n = Given Mass / Atomic Mass

n = 97.22/24 = 4.05

Now we can calculate the Number of Mg atoms in 97.22 .

Number of atoms =

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;