Calculate the molar mass for citric acid

C₆H₈O₇ = 192 g/mol

Explanation:

Molar mass is the sum of the atomic weight of the atoms present in compound.

Formula of citric acid:

C₆H₈O₇

Atomic weight of hydrogen = 1 amu

Atomic weight of carbon = 12 amu

Atomic weight of oxygen = 16 amu

C₆ = 6 × 12 = 72 g/mol

H₈ = 8 × 1 = 8 g/mol

O₇ = 7 × 16 = 112 g/mol

C₆H₈O₇ = 72 g/mol +  8 g/mol + 112 g/mol

C₆H₈O₇ = 192 g/mol

the correct answer is:

a. formation of precipitation