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What is the the theoretical mass of tin formed from 302 g of tinstone?

Answer 1

Serenity Allen

I think you mean #"cassiterite"#, #SnO_2#....

And historically, as usual, carbon was used as the reductant (I'm not sure what they use now, though...).

#SnO_2(s) + C(s) stackrel(Delta)rarr Sn(l) + CO_2(g)uarr#

#"Moles of cassiterite"=(302*g)/(150.71*g*mol^-1)=??*mol#

And so we get #2*mol# of tin from complete reduction....a mass of #2*molxx118.7*g*mol^-1=238*g#...

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Answer 2

Cameron Andrews

Theoretical mass of tin: 148.71 g.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.