How many grams of mg3n2 are in 4.5 molew of mg3n2

First we must find the molar weight of 1 mole of . We take the atomic mass from the periodic table of each of the elements and that is the molar weight, in grams, for 1 mole of that element.

We know that in the chemical formula of , we have 3 moles of Mg and 2 moles of N. So we need to multiply these numbers in order to get the correct amount for the compound:

Mg:

N:

So then we add these two together to get the total molar weight of the compound, :

So now we know that the molar weight of is

We want to know how many grams are in 4.5 moles, so we must multiply and cancel out the units:

Now we know that there are 454.18 grams of in 4.5 moles of .

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a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.