What is the mass percentage of the gold and palladium in the alloy?
-Thanks
Let mass of gold be x
mass of palladium then is 67.2-x
No of moles of gold = x/197
No of moles of palladium = (67.2-x)/106.4
Total no of moles = 0.63158-0.0043223x
No of atoms = No of moles * 6.023*10^23
3.18*10^23 = No of moles * 6.023*10^23
Total no of moles = 0.528 mol
Solve for x
0.63158-0.0043223x = 0.528
x =23.96g
So mass of gold is 23.96 g
mass of palladium is 43.24 g
Copyright © 2024 1QUIZZ.COM - All rights reserved.
Answers & Comments
Verified answer
Let mass of gold be x
mass of palladium then is 67.2-x
No of moles of gold = x/197
No of moles of palladium = (67.2-x)/106.4
Total no of moles = 0.63158-0.0043223x
No of atoms = No of moles * 6.023*10^23
3.18*10^23 = No of moles * 6.023*10^23
Total no of moles = 0.528 mol
Solve for x
0.63158-0.0043223x = 0.528
x =23.96g
So mass of gold is 23.96 g
mass of palladium is 43.24 g