1.) What volume of 6.0 M sulfuric acid is required for the preparation of 500.0 mL of 0.30 M solution?
A) 40 mL B) 100 mL C) 30 mL D) 25 mL E) 50 mL
2.) To measure the volume of an irregularly shaped container filled with water, 1.00 mL of 2.00 M potassium chloride solution is added. After stirring, a 5.00 mL sample was found to contain 2.54 × 10-2 mg of potassium ion. What is the volume of the container?
A) 3.97 × 10-4 L B) 29.4 L C) 2.54 L D) 15.4 L E) 2.94 × 104 L
3.) Given the reaction:
2 KMnO4 + 10 KI + 8 H2SO4 ? 6 K2SO4 + 2 MnSO4 + 5 I2 + 8 H2O
How many moles of I2 are produced by reacting 28.0 g KMnO4, 18.0 g KI and 46.0 g H2SO4?
A) 0.0542 mol B) 0.108 mol C) 0.293 mol D) 0.443 mol E) 0.886 mol