A metal oxide with the formula MO contains 15.44% oxygen. In the box below, type the symbol for the element represented...
A metal oxide with the formula MO contains 15.44% oxygen. In the box below, type the symbol for the element represented by M. Please explain the calculations necessary to solve.
Homework Answers
moles Oxygen (O ) = mass / molar mass of O
= 15.44 g/ 16 g/mol
= 0.965
moles Oxygen (O ) = 0.965
molar mass M = 100 - 15.44 / 0.965 =87.6 g/mol
element for which the molar mass is 87.6 g/mol
molar mass of strontium Sr = 87.6 g/mol
so the metal is Strontium
that is SrO
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