ice Assignment Gr k ORION nent Exercise 3.07 Aluminum sulfate is analyzed, and t

Question

ice Assignment Gr k ORION nent Exercise 3.07 Aluminum sulfate is analyzed, and the sample contains 0.0659 moles of sulfate ions. How many moles of aluminum are in the sample? mol The number of significant digits is set to 3; the tolerance is +/-1 in the 3rd significant digit Click if you would like to Show Work for this question: Open Show Work ntial Polilcy set by your instructor By accessing this Question Assistance, you will learn while you earn points based on the Point Pote Question Attempts: O of 6 used SAVE FOn Earn Maximum Points available only if answer this question correctly in five attempts or less. Di

Explanation / Answer

aluminium sulfate formula = Al2(SO4)3

moles of SO4-2 = 0.0659

Al2(SO4)3 ---------------------> 2Al+3 + 3 SO4-2

2 mol Al+3 ------------------> 3 SO4-2

X mol Al+3 ------------------> 0.0659

X = 2 x 0.0659 / 3

X = 0.0439

moles of aluminium ion = 0.0439

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