Molar Mass of Ammonium Phosphate

This video tutorial explains how to calculate the molar mass of ammonium phosphate (NH4)3PO4. It begins with an introduction to the concept of molar mass and the importance of using the periodic table to find the atomic masses of individual elements. The tutorial then provides a detailed, step-by-step calculation, including the multiplication of atomic masses and the application of coefficients. The video concludes with the final molar mass result and a brief summary of the process.

What is the main objective of the video?

• To compare different phosphate compounds

• To discuss the uses of ammonium phosphate

• To find the molar mass of ammonium phosphate

• To explain the structure of ammonium phosphate

Which element's atomic mass is first considered in the calculation?

• Phosphorus

• Hydrogen

• Oxygen

• Nitrogen

How many hydrogen atoms are present in one ammonium ion?

• Two

• Five

• Four

• Three

What is the atomic mass of phosphorus used in the calculation?

• 30.97 grams per mole

• 1.01 grams per mole

• 14.01 grams per mole

• 16.00 grams per mole

How many oxygen atoms are there in ammonium phosphate?

• Two

• Three

• Four

• Five

What is the total mass contribution of oxygen in the compound?

• 54.15 grams per mole

• 30.97 grams per mole

• 64.00 grams per mole

• 149.12 grams per mole

What is the final calculated molar mass of ammonium phosphate?

• 54.15 grams per mole

• 30.97 grams per mole

• 149.12 grams per mole

• 64.00 grams per mole

What does the molar mass of 149.12 grams per mole represent?

• The mass of one mole of ammonium phosphate

• The mass of one atom of ammonium phosphate

• The mass of one molecule of ammonium phosphate

• The mass of one liter of ammonium phosphate

Who is the presenter of the video?

• Dr. A

• Dr. B

• Dr. D

• Dr. C