Question

What is the formula mass of sulfurous acid?

-98.08 amu
-66.08 amu
-83.09 amu
-82.08 amu
-none of the above

Answer 1

The formula of the sulfurous acid is H2SO3.

You can find the long masses on the periodic table but with integer numbers;
1.2+32+16.3=82.08

Answer 2

The formula mass of sulfurous acid is 82.08 amu.

Step-by-step explanation:

The formula mass of sulfurous acid can be calculated by adding up the atomic masses of the elements in the formula. The formula for sulfurous acid is H2SO3, which consists of 2 hydrogen atoms, 1 sulfur atom, and 3 oxygen atoms. The atomic mass of hydrogen is 1.01 amu, the atomic mass of sulfur is 32.07 amu, and the atomic mass of oxygen is 16.00 amu. Multiplying the atomic masses by the number of atoms and summing them up gives us:

(2 * 1.01 amu) + (1 * 32.07 amu) + (3 * 16.00 amu) = 2.02 amu + 32.07 amu + 48.00 amu = 82.08 amu

Therefore, the formula mass of sulfurous acid is 82.08 amu.