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

Answer Link

Otras preguntas

Diana has just begun the process of filing her federal income tax return, and she plans to deduct medical and dental expenses. which form must she use?

Nitrogen has a melting point of -210.0°C and a boiling point of -195.8°C. A sample of nitrogen is heated from -215.0°C to -200.0°C. Which of the following best

How can equivalent fractions help when adding mixed numbers?

Describe the difference between Great Britain's imports from and exports to Africa in 1854 and 1900. Which experienced a higher rate of growth ?

what is 0.8342 as a mixed number

The position of the United States toward Latin America in the late 1800s can be characterized as?

Sam is framing a closet under a stairway. the stairway is 13 ft 5 in. long, and its angle of elevation is 34 degrees°. find the depth of the closet to the near

8^{3\cdot 8^{-2}}\cdot 8^1=

is the line parallel,perpendicular, or neither?

Please graph this. y + 1 = − (3/5)(x−4) Add picture, thanks!