Vitamin C tablets are taken as a dietary

To determine the amount of vitamin C in moles contained in 27 tablets, we can use the molar mass of vitamin C and the given mass of one tablet.

The molar mass of vitamin C, also known as ascorbic acid (C₆H₈O₆), can be calculated by adding up the atomic masses of its constituent elements. The atomic masses are obtained from the periodic table. In this case:

Molar mass of vitamin C (ascorbic acid) = 6 * atomic mass of carbon (C) + 8 * atomic mass of hydrogen (H) + 6 * atomic mass of oxygen (O)

Substituting the atomic masses, we get:

Molar mass of vitamin C = 6 * 12.01 g/mol (atomic mass of carbon) + 8 * 1.01 g/mol (atomic mass of hydrogen) + 6 * 16.00 g/mol (atomic mass of oxygen)

Molar mass of vitamin C ≈ 176.12 g/mol

Now, we can determine the moles of vitamin C in 27 tablets using the given mass of one tablet and the molar mass.

Moles of vitamin C in 27 tablets = (mass of one tablet) * (number of tablets) / (molar mass of vitamin C)

Substituting the values, we have:

Moles of vitamin C in 27 tablets = (500.0 mg) * (27) / (176.12 g/mol) = (500.0 * 27) / (176.12) mg/mol

To convert milligrams (mg) to grams (g), we divide by 1000:

Moles of vitamin C in 27 tablets = (500.0 * 27) / (176.12 * 1000) g/mol

Calculating this expression, we find:

Moles of vitamin C in 27 tablets ≈ 0.077 mol

Therefore, the amount of vitamin C in moles contained in 27 tablets is approximately 0.077 mol.