Question

How many grams are contained in 9.0mol Al2O3. Show work

Answer 1

no way is these points omg i love it

Answer 2

`\boxed{\color{blue}\textsf{The weight of the Aluminium oxide is \textbf{900 grams . }}}`

Explanation:

Here we are given 9 moles of
`\sf Al_2O_3` and we need to find its weight in grams . So we know the formula to find the number of moles as ,

`\qquad\boxed{ \sf N_((moles))= (Weight(in \ grams ))/(Molecular \ weight )}`

Now the molecular mass of
`\sf Al_2O_3` is , equal to 26*2 + 16*3 = 52 + 48 = 100 g

Using the formula to find the Number of moles :-

`\sf\implies \sf N_((moles))= (Weight(in \ grams ))/(Molecular \ weight ) \\\\\sf\implies 9 =( W)/( 100g )\\\\\sf\implies W = 9 * 100 g \\\\\sf\implies\boxed{\pink{\frak {Weight_((Al_2O_3))= 900 grams }}}`