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anonymous

  • 5 years ago

Step 7: To find the percentage of oxygen and the percentage of carbon use this equation: % mass = (mass of the element ion)/ (weight of the container) x 100 % mass of carbon = (21.6 grams C)/(50 grams)x 100 = 43.2 % C % mass of sodium = ( ? grams Na)/ (737 grams) x 100 =? % Na % mass of oxygen = (28.8 grams O)/(50 grams) x 100 = 57.6 % O % mass of chlorine = ( ? grams Cl)/ (737 grams) x 100 =? % Cl *check your answer % mass should total approximately 100% *

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