1. How many particles are there in one mole of any kind of substance?

A. 3.02 x10 23 C. 6.02 x 10 23

B. 3.02 x 10 24 D. 6.02 x 10 24

2. Why is the mole concept important?

A. It can be applied to any type of particle representative.

B. It gives us a convenient way to express large numbers.

C. It useful when converting between grams and atoms or molecules.

D. All of the above.

3. Aspirin is commonly used as a pain reliever for minor aches and pains and to reduce

fever the chemical formula of aspirin is C9H8O4. What is the mass of 0.40 mol of

aspirin? ? (Atomic Weight : C= 12.01,H=1.00. 0= 16.00)

A. 10.8 g C. 72.04 g

B. 45 g D. 160 g

4. Glucose (C6H12O6) is also known as blood sugar. It is an energy source that fuels the

body. What is the molar mass of the compound? ? (Atomic Weight : C=

12.01,H=1.00. 0= 16.00)

A.174.11 amu C. 180.06 amu

B.174.11 g/mol D. 180.06 g/mol

5. Vitamin C is one of the most in-demand supplements and reliable defense against

COVID-19 nowadays. This covalent compound has a molecular formula C6H8O6.

How many moles of Vitamin C did you consume if your intake is 0.0250g? (Atomic

Weight : C= 12.01,H=1.00. 0= 16.00)

A. 175 mol C. 0.00014 mol or 1.4x10-4 mol

B. 176 mol D. 0.000014 mol or 1.4 x 10 -5 mol​