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Damm [24]
3 years ago
8

a 143.1 g sample of a compound contains 53.4 g of carbon, 16.9 g of hydrogen, 43 g of nitrogen, and some amount of oxygen. what

is the mass percent of oxygen in the compound?
Chemistry
2 answers:
elixir [45]3 years ago
8 0

mass of oxygen = 143,1g - (53,4g + 16,9g + 43g) = 29,8g

If 143,1g ------ is ------ 100%

                      so

  29,8g  ------- is ------ %O

%O = (29,8g*100%) / 143,1g = 20,82%

Alex Ar [27]3 years ago
3 0
Mass of oxygen = 143,1g - (53,4g + 16,9g + 43g) = 29,8g

If 143,1g ------ is ------ 100%
                       so
   29,8g  ------- is ------ %O

%O = (29,8g*100%) / 143,1g = 20,82%
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