Final answer:
To calculate the grams of H₃PO₄ in a 175 mL solution at 3.50 M concentration, multiply the volume in liters by the molarity and the molar mass, which equals 60.10 grams.
Step-by-step explanation:
To find out how many grams of H₃PO₄ are in 175 mL of a 3.50 M solution of H₃PO₄, you'll need to use the formula:
mass (g) = molarity (M) × volume (L) × molar mass (g/mol)
Firstly, convert the volume from milliliters to liters by dividing by 1000:
Next, use the formula with the given values:
- molarity (M) = 3.50 M
- volume (L) = 0.175 L
- molar mass (H₃PO₄) = 97.99 g/mol
Mass of H₃PO₄ = 3.50 M × 0.175 L × 97.99 g/mol = 60.0965 g
Therefore, 175 mL of a 3.50 M H₃PO₄ solution contains 60.10 grams of H₃PO₄.