-Please Check my calculations- Mass Data for preparation of Alum Mass Weighing paper: 0.3832 grams Mass Weighing paper...

60.1K

Verified Solution

Question

Chemistry

-Please Check my calculations-
Mass Data for preparation of Alum
Mass Weighing paper: 0.3832 grams
Mass Weighing paper plus Aluminum: 1.3838 grams
Mass of watch glass: 56.5001 grams
Mass of watch glass plus dry alum: 68.8550
**Balanced Equation:2Al(s)+2KOH(aq)+4H2SO4(aq)+22H2O(l)=2KAl(SO4)2*12H2O(s)+3H2(g)
Yields of Alum**
Mass of aluminum: 1.0006 grams
Mass of dry alum: 12.354 grams
Theoretical Yield:
1.0006/26.98 = .03709 moles Al (Mass Aluminum/Molar Mass)
.03709 * 474.3884g/mole Alum = 17.595 grams Alum (Moles Al/MolarMass of Alum)
Percent Yield
Actual/Theoritical x 100%
12.3549/17.595 = .7022 *100= 70.22%

Answer & Explanation Solved by verified expert

4.2 Ratings (850 Votes)

AnsFor the given reaction2Als2KOHaq4H2SO4aq22H2Ol2KAlSO4212H2Os3H2gI we expect to get 22698g 5396g ofAl in the form ofAlumif we use 2mols ofAl as reactantNow we have taken 10006g of Al as reactant See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member