Question

Given the balance equation:
2Al+6H-----2Al³+3H2
When 2 moles of Al completely reacts,what is the total number of moles of electrons transferred from Al to H.

Answer 1

Answer:

Explanation:

From the equation, we can see that the ratio of number of moles:

Al : HCl : AlCl3 : H2 (Assuming that HCl3 was a typo)

is equal to:

2 : 6 : 2 : 3 (As the numbers in front of each substances show)

Therefore, if 0.040 mol of aluminium reacted completely, than 0.040×32=0.060mol of hydrogen was formed.

Thus, 0.060÷20=0.003mol/s

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Answer 2

Answer:

the answer to the question is 0.003