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

Angle C is an inscribed angle of circle P. Angle C measures (20x - 5)º and arc AB measures (30x + 30)". Find the measure of arc AB 100 degrees 50 degrees 75 de

How to make slime without glue or cornstarch

Find the product of (a+5) (a-3)

2x+3y= 15 x+y= 6 wor out the values of "x" and" y"

A succulent is any plant that stores water in its leaves, stems, or roots. They come in all shapes and varieties, and some even produce flowers. Some of the be

Complete these sentences by selecting the correct answers from the drop-down menus. After one half-life,__ % of the atoms will change to a stable isotope and__

Which situation best shows irony?

Which sentence from Roosevelt’s request for a declaration of war is an example of a bandwagon appeal?

plz hurry !!! What defines the numbering styles of lists in HTML pages? The______defines the numbering styles of lists in HTML pages.

Can I date at 15 years old when someone is over 18 years old?