How many grams in 120 moles of iron (Fe)?

Mass = 6702 g

Explanation:

Given data:

Number of moles of iron = 120 mol

Mass of iron = ?

Solution:

Formula:

Number of moles =mass/molar masa

Molar mass of iron = 55.85 g/mol

By putting values,

120 mol = mass/ 55.85 g/mol

Mass = 120 mol ×55.85 g/mol

Mass = 6702 g

The Lewis structure for XeF4 has a total of 36 valence electrons. When we are done adding valence electrons we check each atom to see if it has an octet (full outer shell). We also need to check to make sure we only used the number of available valence electrons we calculated earlier (no more, no less).

Explanation: