The percent of O in a 40.0 g sample of an unknown compound is found to containing 32.14 g Zn and 7.86 g O is 19.65%
What is Mass percentage ?
The solution composition can be described in mass percentage which shows the mass of solute present in a given mass of solution.
The quantity of solute is expressed in mass or by moles.
For a solution, the mass per cent is described as the grams of solute per grams of solution, multiplied by 100 to get the percentage.
Formula ;
Mass percent = (mass of chemical÷total mass of compound) x 100.
= 7.86/40 × 100 %
= 19.65 %
Therefore, The percent of O in a 40.0 g sample of an unknown compound is found to containing 32.14 g Zn and 7.86 g O is 19.65%
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