Question:What is the percent by mass of hydrogen in aspirin
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Molecular Formula = C9H8O4. Mr = 12*9+8+16*4 = 180.160 g/mol. %Mass (H) = 8/180.160 * 100 = 4.44%.
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11.1%.
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 Molecular Formula = C9H8O4 Mr = 12*9+8+16*4 = 180.160 g/mol %Mass (H) = 8/180.160 * 100 = 4.44% http://answers.yahoo.com/question/index?qid=200702...See entire page »
 Molecular Formula = C9H8O4 : Mr = 12*9+8+16*4 = 180.160 g/mol : Per... ...MORE... http://www.chacha.com/question/what-is-the-composi...See entire page »
 If a 78.0-g sample of an unknown compound contain 12.4 g of hydrogen.What is the percent by mass of hydrogen in the compound? ChaCha ... http://www.chacha.com/question/if-a-78.0%26%2345%3...See entire page »
 The percent of carbon in aspirin: asprin has a mass of 113... http://www.chacha.com/question/what-is-a-percent-c...See entire page »
 The formula shows that the compound contains 8 hydrogen atoms per molecule, of which the gram molecular mass is 46.07. Each hydrogen atom has a gram atomic mass of 1.00794. Therefore, the percent by mass of hydrogen in the compound is 100[8(... http://wiki.answers.com/Q/What_is_the_percent_by_m...See entire page »
 11.1. http://wiki.answers.com/Q/What_is_the_percent_by_m...See entire page »
 the answer is 6.3% http://wiki.answers.com/Q/What_is_the_percent_comp...See entire page »
 0.8%. http://wiki.answers.com/Q/What_percent_by_mass_of_...See entire page »
 %C= 40.08% %H= 5.04% %O= 53.31% Keep in mind that this total amount adds up to a little less then 100%. That is because each Periodic Table has a different set of values for the elements' mass (ex. Hydrogen can be 1.01 or 1.0080 or 1.00079) ... http://wiki.answers.com/Q/What_is_the_percent_by_m...See entire page »
 200/41 = approx 4.878%. http://answers.yahoo.com/question/index?qid=200712...See entire page »
 There is 1.008 parts of hydrogen to 16 parts of oxygen, so th... http://www.chacha.com/question/what-is-the-mass-pe...See entire page »
 They are about as old as the universe. In other word they are over 13 billion years old. http://wiki.answers.com/Q/How_old_are_the_Hydrogen...See entire page »
 lets see. H20 you have 2.016 grams of hydrogen here to 16.0 grams oxygen 2.016/16.0 X 100 = 12.6% hydrogen by mass H2O2 you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule 2.016/32.0 X 100 = 6.3% so H... http://wiki.answers.com/Q/Which_compound_has_a_hig...See entire page »
 approx 4/16 = 25%. you can do it with more exact values, if you wish. http://answers.yahoo.com/question/index?qid=201003...See entire page »
 what you have to do is construct a formula and then sum up the ratios of each atom and using that ratio you can determine the mass percent http://answers.yahoo.com/question/index?qid=200902...See entire page »
 Law of Definite Porportions. http://wiki.answers.com/Q/What_law_is_illustrated_...See entire page »
 First, using a top loading balance, weigh out, in a pl... http://www.chacha.com/question/how-do-i-calculate-...See entire page »