An herbicide is found to contain only c, h, n, and cl. the complete combustion of a 100.0-mg sample of the herbicide in excess oxygen produces 83.16 ml of co2 and 73.30 ml of h2o vapor at stp. a separate analysis shows that the sample also contains 16.44 mg of cl. part a determine the percent composition of the substance.

atomic = no of protons.

mass number-atomic number = neutron number

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"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

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