qmurphy07 qmurphy07

22-01-2018
Chemistry

contestada

What is the mass percent of oxygen in sodium bicarbonate (NaHCO3)?

19.04%

27.37%

38.09%

57.13%

Respuesta :

chmvijayouls6d chmvijayouls6d

03-10-2018

Na- 11=22

H-1 =1

C-12=12

O3=16*3 =48

total = 22+1+12+48 = 83

83-----> 48

100-----> 100*48/83=57.83 = 57.13 is nearest answer

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