Baking soda is a bicarbonate, which means that each molecule of baking soda
contains a sodium atom, a H atom, an O2 atom, and a CO2 molecule.
Vinegar contains acetic acid, and each molecule contains a H atom, and an acetate ion.
When they're combined, the hydrogen atom in the acetic acid meets up with the H and O2 atoms in the baking soda to form a molecule of water, while the acetate ion grabs onto the sodium atom and forms a salt, sodium, acetate. The CO2 molecule, free of its other chemical bonds, can now escape, and bubbles form as a gas.
The movement of water on and above the earth's surface is called the hydrologic cycle, or the water cycle. Hope this helps!
Convert moles to mass.
mass C = 0.2 mol * 12 g / mol = 2.4 g
mass H = 0.4 mol * 1 g / mol = 0.4 g
So mass left for O = 6 g – (2.4 g + 0.4 g) = 3.2 g
Calculating for moles O given mass:
moles O = 3.2 g / (16 g / mol) = 0.2 moles
Answer:
<span>0.2 moles O</span>
