Chemistry, asked by dipu4715, 11 months ago

k2cr2o7 how to find percentage composition of condtituent elements​

Answers

Answered by aravind28012006
2

Answer:

Explanation:

Mol mass of K2Cr2O7 = (K:39 x 2) + (Cr:52 x 2) + (O:16 x 7) = K:78 + Cr:104 + O:112 = 294g/mol. K: = (78 / 294) x 50g = 13.26g Potassium. Cr: = (104 / 294) x 50g = 17.69g Chromium. O: = (112 / 294) x 50g = 19.05g Oxygen.

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