Question

What is the percent by mass of potassium in K3Fe(CN)6?
Use
16.96%
21.88%
25.53%
35.62%

Answer 1

Answer:

Mass percent composition of K = mass contribution of K/molecular mass of K3Fe(CN)6 x 100% Mass percent composition of K = 117.30 g/mol/329.27 g/mol x 100% Mass percent composition of K = 0.3562 x 100% Mass percent composition of K = 35.62%

Answer 2

Answer:

D

Explanation: