Time remaining:
Question for General Chemistry

Chemistry
Tutor: None Selected Time limit: 1 Day

If 10.8 kg of A12O3(s), 58.4 kg of NaOH(l) and 58.4 kg of HF(g) react completely, how many kg of cryolite will be produced?

Al2)3(s) + 6NaOH(l) +12HF(g) -> 2Na3AlF6+ 9H2O(g)

Feb 5th, 2015

given the reaction equation, the mole ratio of Al2O3 to Na3AlF6 is 1:2

we find moles of Al2O3 reacted =mass reacted/molecular mass

molecular mass of Al2O3 is 0.10196Kg/mol

moles=10.8Kg/0.10196Kg/mol=105.92 moles

moles of Na3AlF6 using the mole ratio is 2*105.92=211.85moles

mass produced=molecular mass of Na3AlF6*number of moles produced

molecular mass is 0.2099Kg/mol

mass produced =0.2099*211.85=44.47Kg

please best this answer

Feb 5th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Feb 5th, 2015
...
Feb 5th, 2015
Feb 20th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer