Final answer:
To calculate the minimum mass of sulfuric acid required, one must know the molarity and volume of the solution, find the number of moles (from molarity and volume), determine the molar mass of sulfuric acid, and then calculate the mass using the relationship mass = moles × molar mass.
Step-by-step explanation:
The problem requires finding the minimum mass of sulfuric acid (H₂SO₄) needed based on a given molarity and volume. This involves a few simple steps:
- Determine the number of moles of the solute required using the volume and molarity of the solution.
- Find the molar mass of the solute, which in this case is sulfuric acid.
- Calculate the mass of the solute using the formula: mass (g) = moles × molar mass (g/mol).
To address the question, we will specifically look at item 49 from the text provided where glucose, not sulfuric acid, is used. For glucose in a 0.30 M solution, the mass of glucose in 0.500 L of solution is first calculated by determining the moles of glucose (Molarity × Volume). Then, the molar mass of glucose (C₆H₁₂O₆) is found and used to calculate the mass (moles × molar mass). Using this process, the answer given is 27 g. To mirror this process to find the minimum mass of H₂SO₄, the same steps would be followed using the correct molarity and volume for the sulfuric acid solution.