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rodikova [14]
3 years ago
6

What is the mass of 0.513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102.0

g/mol)
0.513 mol Al2O3
Chemistry
2 answers:
prisoha [69]3 years ago
7 0
.513mol x (102g/1mol)

Essentially, this is .513 x 102
Which equals: 52.326
But because you can only have 3 significant figures, your answer is:
52.3 grams

I hope this Helps!
sergeinik [125]3 years ago
7 0

Answer : The mass of 0.513 mole Al_2O_3 is, 52.3 grams

Solution : Given,

Moles of Al_2O_3 = 0.513 mole

Molar mass of Al_2O_3 = 102.0 g/mole

Formula used :

\text{Moles of }Al_2O_3=\frac{\text{Mass of }Al_2O_3}{\text{Molar mass of }Al_2O_3}

Now put all the given values in this formula, we get the mass of Al_2O_3

0.513mole=\frac{\text{Mass of }Al_2O_3}{102.0g/mole}

\text{Mass of }Al_2O_3=52.3g

Therefore, the mass of 0.513 mole Al_2O_3 is, 52.3 grams

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