Question

Give the mass %, item % and show ALL calculations involved for:sodium bicarbonate

I provided an example in picture below

Let's assume we have in this Molecule Nacios: Na 22.99 amu* ch 35.54 amu What is the mass of all the Na ion Clion O ion 1 x 22.99 amu = 22.99 amu 1 x 35.45 amu = 35.45 amu 3 x 16.00 amu = 48.00 amu 16.00 amu What I sthe total mass of the molecule? 106.44 amu o 16.00 amu 16.00 amu 16.00 amu What percentage of the molecule by mass is: Na 22.99/106.44 amu = 21.69% 35.45/106.44amu = 33.31% 48/106.44amu = 45.10% * Where did this number come from? Periodic Table

Answer 1

(NaHCO3). mass sodium bicarbonate element symbol sodium Na hydrogen H . Carbon Oxygen. 22.99amu. 1.008 amu 12.0lamu 16.00 anu mass of all Naion . 1x 22.99 amu = 22.99amu. IX 1.008 ann a 1.008 amu. C 1x 12.01 amu = 12.00 amu . 0 3x 16.00 amu = 48.odalmu Total mass o the molecule 99 +10o8+ 12.01 + 48.00) amu. 2 84.00 8 amu Ma 234.000X100 2 27.37%. # .008 100 = 1.1991% 84.008 item of: by mass is 22.99 x100 97.37%.

C = 12:01 84.008 Tex 100 o/. 14.29%. 148.00 x100 of ant 84.008 The mass number comes from the for the individual atoms by adding up the mass of protons & neutrons. It is generally collected from periodic table.