The approximate recommended daily dietary intake of the amino acid valine, c5h11no2, is 2.60 g for a 100 kg adult. what is this requirement in moles?

Answer is: requirement of valine is 0,0222 mol for a100 kilograms adult.

m (C₅H₁₁NO₂) = 2,60 g.

M (C₅H₁₁NO₂) = 5 · 12 + 11 · 1 + 1 · 14 + 2 · 16 · g/mol.

M (C₅H₁₁NO₂) = 117 g/mol.

n (C₅H₁₁NO₂) = m (C₅H₁₁NO₂) : M (C₅H₁₁NO₂).

n (C₅H₁₁NO₂) = 2,60 g : 117 g/mol.

n (C₅H₁₁NO₂) = 0,0222 mol.

n - amount of substance.

m - mass of substance.

M - molar mass of substance.

To calculate the requirement in mole, we need to calculate the molar mass.

C5H11NO2 = (12 * 5) + (1 * 11) + 14 + (16 * 2) = 117

Hence number of moles = mass/molar mass

Mass = 2.6g and molar mass = 117

Number of moles = 2.6/117 = 0.022