Concentration of sulphate ion

  • Thread starter xiphoid
  • Start date
  • #1
xiphoid
57
0

Homework Statement


The concentration of Al3+ ion in aqueous solution of Al2(SO4)3 is 0.28M, Then the concentration of SO42- ion in this solution will be?


Homework Equations


Al2(SO4)3 → 2Al3+ + 3SO42-


The Attempt at a Solution


What should i compare to start of with?
 

Answers and Replies

  • #2
AGNuke
Gold Member
455
9
How many moles of sulphate ions are present in 1 mole Aluminium Sulphate?
 
  • #3
xiphoid
57
0
3 moles, is this the answer?
How many moles of sulphate ions are present in 1 mole Aluminium Sulphate?
 
  • #4
Saitama
3,816
93
3 moles, is this the answer?

How many moles of Aluminium Sulphate do you currently have?
 
  • #5
xiphoid
57
0
1 mole
How many moles of Aluminium Sulphate do you currently have?
 
  • #6
Borek
Mentor
28,998
3,659
Take a look at the formula - how many moles of Al3+ and how many moles of SO42- in 1 mole of Al2(SO4)2? What is their ratio? Can you use this ratio to solve the problem?
 

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