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kirill [66]
3 years ago
6

C2H6 is an example of what? a)iron b)element. c)atom. d)compound

Chemistry
2 answers:
Rama09 [41]3 years ago
6 0
C2H6 is a chemical compound
Mekhanik [1.2K]3 years ago
3 0
I’m guessing D. Compound... haven’t had chem in a while
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How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate
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Answer:- Third choice is correct, 17.6 moles


Solution:- The given balanced equation is:


Al_2(SO_4)_3+6KOH\rightarrow 2Al(OH)_3+3K_2SO_4


We are asked to calculate the moles of potassium hydroxide needed to completely react with 2.94 moles of aluminium sulfate.


From the balanced equation, there is 1:6 mol ratio between aluminium sulfate and potassium hydroxide.


It is a simple mole to mole conversion problem. We solve it using dimensional set up as:


2.94molAl_2(SO_4)_3(\frac{6molKOH}{1molAl_2(SO_4)_3})


= 17.6 mol KOH


So, Third choice is correct, 17.6 moles of potassium hydroxide are required to react with 2.94 moles of aluminium sulfate.



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