## Answers

From stoichiometry,

3 moles of V2O5 produce 6 moles of vanadium

Or we can write

(3 x 181.88 ) g of V2O5 produce = (6 x 50.94 ) g of V i.e vanadium

So 11.3 g of vanadium can be produced by =( 3 x 181.88 x 11.3 ) / (6 x 50.94) = **20.17 g of V2O5**

**similarly , 10 moles of Al produce = 6 moles of V**

**so , 10 x 26.98 g of Al produce = (6 x 50.94) g of V**

**so 11.3 g of V produce by = (10 x 26.98 x 11.3 ) / (6 x 50.94) i.e = 9.974 g of aluminum**

*maximum mass of Al2O3 that can be produced is (5 x 101.96) i.e 509.8grams*

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