Answer to Question #253077 in Chemistry for Dolce.nightsky

Question

How many grams of glucose (C6H12O6) are needed to prepare 100mL of a 5% glucose solution?

Answer 1

Let's assume the solution density is 1 g/ml. Therefore, 100 ml = 100 g.

% = (m_solute / m_solution) x 100%

5% = (m_solute / 100) x 100%

m_solute = 5 g

The required mass of glucose (C₆H₁₂O₆) is 5 g.