31. Five g of water are vaporized in a 2.0 L pressure cooker and heated to 500 K. and the molar mass of water is 18 g/mol. What is the pressure in atm inside the container? (A) 2.3 (B) 3.2 (C) 4.5 (D) 5.7

5. One milliliter (1.00 mL) of acid taken from a lead storage battery is pipetted into a flask. Water and phenolphthalein indicator are added, and the solution is titrated with 0.50 M NaOH until a pink color appears; 12.0 mL are required. The number of grams of H2SO4 (formula weight = 98) present in one liter of the battery acid is (to within 5%): (A) 240 (B) 290 (C) 480 (D) 580

31. Five g of water are vaporized in a 2.0 L pressure cooker and heated to 500 K. and the molar mass of water is 18 g/mol. What is the pressure in atm inside the container?
(A) 2.3
(B) 3.2
(C) 4.5
(D) 5.7

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