Determine which is/are the solvent and the solute from the following bicarbonate buffer solution components: 1.00 g of sodium bicarbonate, 9.00 g of sodium carbonate, and 1.0 kg of water.

• A. Solute: 1.00 g of sodium bicarbonate, 9.00 g of sodium carbonate, and 1.0 kg of water
  Solvent: None
• B. Solute: 1.00 g of sodium bicarbonate
  Solvent: 9.00 g of sodium carbonate and 1.0 kg of water
• C. Solute: 1.00 g of sodium bicarbonate and 9.00 g of sodium carbonate
  Solvent: 1.0 kg of water
• D. Solute: None
  Solvent: 1.00 g of sodium bicarbonate, 9.00 g of sodium carbonate, and 1.0 kg of water

Answer: (C)