The unknown chlorate is one of the following choices: sodium chlorate NaCIO, potassium chlorate KCIO,

magnesium chlorate Mg(CIO)₂. or calcium chlorate Ca(CIO) Calculate the percent composition of

oxygen in each compound for comparison. Report percentages with proper precision


Of the four possible unknown compounds,___________________ has a percentage composition

closest to your experimental percentage of oxygen.

Error Analysis:

Calculate the percent error of your result using the calculated percentage of oxygen (from above) as the

expected value. Be sure to show the equation and your work.