Question

calculate the formula mass of sucrose, c₁₂h₂₂o₁₁.
periodic table of the elements
340.0 amu
300.0 amu
142.3 amu
342.3 amu
clear my selection

Explanation:

Step1: Find atomic masses

From periodic table: C = 12.01 amu, H = 1.008 amu, O = 16.00 amu.

Step2: Calculate mass of each element

• C: \(12 \times 12.01 = 144.12\) amu
• H: \(22 \times 1.008 = 22.176\) amu
• O: \(11 \times 16.00 = 176.0\) amu

Step3: Sum the masses

Total formula mass = \(144.12 + 22.176 + 176.0 = 342.296 \approx 342.3\) amu.

Answer:

342.3 amu (corresponding to the option: 342.3 amu)