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What volume of carbon dioxide would evolve if....?

What volume of carbon dioxide would evolve if a #25g# mass of zinc carbonate is treated with a #0.300dm^3# volume of #2moldm^-3# nitric acid?

Answer 1

Peyton Adams

We interrogate the following reaction:

#ZnCO_3(s) + 2HNO_3(aq) rarr Zn(NO_3)_2(aq) + H_2O(l) + CO_2(g)uarr#

The expression "Moles of zinc carbonate" is equal to (25.0g)/(125.42gmol^-1) = 0.199mol.

#"Moles of nitric acid"# #=# #0.300*dm^3xx2*mol*dm^-3=0.60*mol.#

clearly there is excess acid, and the reaction is stoichiometric in zinc carbonate. We should get #0.199*mol# of #CO_2(g)# evolved. Under standard conditions (and you should check which standard conditions pertain - they vary across each syllabus), the molar volume is #22.7*L*mol^-1#. And thus.........

#22.7*L*mol^-1xx0.60*mol=13-14*L#.

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Answer 2

Luna Chen

You didn't provide the complete question. Could you please provide the full question so I can assist you accurately?

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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.

What volume of carbon dioxide would evolve if....?

What volume of carbon dioxide would evolve if a #25*g# mass of zinc carbonate is treated with a #0.300*dm^3# volume of #2*mol*dm^-3# nitric acid?

What volume of carbon dioxide would evolve if a #25g# mass of zinc carbonate is treated with a #0.300dm^3# volume of #2moldm^-3# nitric acid?