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aleksley [76]
3 years ago
9

Which of the following are cations? Check all that apply.

Chemistry
1 answer:
Lostsunrise [7]3 years ago
4 0

Answer:

a

barium

b

calcium

e

aluminum

f

magnesium

g

copper

Forms cation

Explanation:

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Answer: 103.8 g of Fe_2O_3, 0.65 moles of

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

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Thus O_2 is the limiting reagent as it limits the formation of product and Fe is the excess reagent.

4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3

According to stoichiometry :

3 moles of O_2 produce =  2 moles of Fe_2O_3

Thus 0.975 moles of O_2 will produce=\frac{2}{3}\times 0.975=0.65moles of Fe_2O_3

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Thus 103.8 g of Fe_2O_3 will be produced.

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