Understanding Sodium Bicarbonate Composition

The video tutorial explains how to find the number of atoms in sodium bicarbonate (NaHCO3). It begins by identifying the element symbols for sodium, hydrogen, carbon, and oxygen. The video then counts the individual atoms in NaHCO3, noting that there is one sodium, one hydrogen, one carbon, and three oxygen atoms, totaling six atoms. It further explains how to calculate the number of oxygen atoms in one mole of NaHCO3 using Avogadro's number. The tutorial concludes with a brief thank you from Dr. B.

Which elements are present in the chemical formula of sodium bicarbonate?

• Sodium, Hydrogen, Carbon, Nitrogen

• Sodium, Hydrogen, Sulfur, Oxygen

• Sodium, Nitrogen, Carbon, Oxygen

• Sodium, Hydrogen, Carbon, Oxygen

How many oxygen atoms are present in a single molecule of sodium bicarbonate?

• One

• Four

• Two

• Three

What is the total number of atoms in a molecule of sodium bicarbonate?

• Six

• Five

• Four

• Seven

How do you calculate the total number of atoms in sodium bicarbonate?

• Multiply the number of each element by two

• Divide the number of carbon atoms by the number of hydrogen atoms

• Add the number of atoms of each element

• Subtract the number of oxygen atoms from the total

What is Avogadro's number used for in the context of sodium bicarbonate?

• To calculate the total mass of sodium bicarbonate

• To measure the volume of sodium bicarbonate

• To determine the number of oxygen atoms in one mole

• To find the number of sodium atoms in a molecule

How would you find the number of oxygen atoms in one mole of sodium bicarbonate?

• Divide the number of oxygen atoms by Avogadro's number

• Add Avogadro's number to the number of oxygen atoms

• Subtract Avogadro's number from the number of oxygen atoms

• Multiply the number of oxygen atoms by Avogadro's number