Give the mass % of carbon in your compound  ___________________18.537956___________ Give the mass % of hydrogen in your compound  _____________________3.11178341_________ Symbol or name of your 3rd element in your compound  _________iodine_____________________ Give the mass % of your 3rd element in your compound  ___________________78.350261___________ Do step 1, that is convert from mass % to mass of each of your three elements. Do step 2, that is convert from mass of each of your elements to number of

World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter6: Chemical Composition
Section: Chapter Questions
Problem 15A
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  1. Give the mass % of carbon in your compound  ___________________18.537956___________
  2. Give the mass % of hydrogen in your compound  _____________________3.11178341_________

Symbol or name of your 3rd element in your compound  _________iodine_____________________

Give the mass % of your 3rd element in your compound  ___________________78.350261___________

  1. Do step 1, that is convert from mass % to mass of each of your three elements.




  1. Do step 2, that is convert from mass of each of your elements to number of moles of each element.





  1. Do step 3, that is divide each element’s number of moles by the lowest number of moles to get the ratio.





  1. Do step 4, that is if the numbers for the ratio are not whole numbers, then multiply by whatever is the smallest number you need to make all whole numbers (so double, or triple, or …. the numbers)



  1. Do step 5, that is write the formula.

 



 
 
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