Calculating Molecular Mass of Covalent Compounds

The video tutorial explains how to calculate molecular mass, focusing on covalent compounds. It begins with an introduction to molecular mass and its association with covalent bonds. The tutorial then provides a step-by-step guide to calculating molecular mass using examples like HCl, H2O, and CO2. Advanced examples such as PCl3, H2SO4, and glucose are also covered, demonstrating the calculation process for more complex molecules.

What type of compounds is molecular mass usually associated with?

• Ionic compounds

• Covalent compounds

• Metallic compounds

• All types of compounds

Which elements are typically involved in forming covalent compounds?

• Metals and metals

• Noble gases

• Metals and non-metals

• Non-metals and non-metals

What is the atomic mass of chlorine used in the calculation of HCl's molecular mass?

• 35.5 unit

• 16 unit

• 12 unit

• 1 unit

How many atoms of hydrogen are present in a water molecule?

• Three

• Two

• One

• Four

What is the molecular mass of carbon dioxide?

• 18 unit

• 36.5 unit

• 98 unit

• 44 unit

How many atoms of chlorine are present in PCl3?

• Three

• Two

• One

• Four

What is the molecular mass of H2SO4?

• 180 unit

• 44 unit

• 137.5 unit

• 98 unit

How many atoms of carbon are present in a glucose molecule?

• Four

• Six

• Eight

• Twelve

What is the molecular mass of glucose?

• 44 unit

• 137.5 unit

• 180 unit

• 98 unit

Which of the following is a key step in calculating molecular mass?

• Subtracting atomic masses

• Dividing atomic masses

• Adding atomic masses

• Multiplying atomic masses