Chemistry, asked by ks9425035776, 5 months ago

Calculate percentage of oxygen in K2Cr2O7. [K= 39, Cr= 52, O=16]

Answers

Answered by Anonymous

15

Answer:

Molecular mass of K2Cr2O7 =78+104+112

=294 g

Mass percent of Oxygen

= 112/294x100

=38.095%

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