10 Question (1 point) See page 700 V 1st attempt See Periodic Table D See Hint...
W See Periodic Table See Hint Pyridine (C5H5N) is a particularly foul-smelling substance used in manufacturing pesticides and plastic resins. Calculate the pH of a 0.115 M solution of pyridine (Kb = 1.4x10°). 9.99
Feedback See Periodic lable See Hin Pyridine (CsHsN) is a particularly foul-smelling substance used in manufacturing pesticides and plastic resins. Calculate the pH of a 0.135 M solution of pyridine (Kp- 1.4x10). 10.64 3rd attempt 2nd attempt 1st attempt K13/17 VIEW SOLUTION C TRY AG 15 OF 17 QUESTIONS COMPLETED
Pyridine (C_5H_5N) is a particularly foul-smelling substance used in manufacturing pesticides and plastic resins. Calculate the pH of a 0.145 M solution of pyridhe (K_b = .00000000140).
02 Question (1 point) e See page 690 1st attempt i See Periodic Table D See Hint Calculate the pH of stomach acid in which [HCl] = 0.149 M.
07 Question (1 point) O See page 336 v 1st attempt hi See Periodic Table Q See Hint Calculate the mass of MgCos precipitated by mixing 10.00 mL of a 0200 M Na CO, solution with 5.00mL of a 00650 M Mgt NOa)2 solution.
07 Question (1 point) e See page 690 (1 point) V 1st attempt i See Periodic Table D See Hint A solution is made by dissolving 0.06000 moles of Ba(OH)2 in enough water to make 770.0 mL of solution. What is the pH of the resulting solution?
16 Question (1 point) See page 275 1st attempt il See Periodic Table See Hint The air pressure in the tires of an automobile is adjusted to 25.0 psi at a gas station in San Diego, where the air temperature is 68°F. The air in the tires is at the same temperature as the atmosphere. The automobile is then driven east along a hot desert highway, and the temperature inside the tires reaches 137 °F. What is the pressure in...
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction below was determined to be 3.241x10 s a 225 kJ/mol. What wou Id be the value of the rate constant at 9.40x10 K? N20(g) > N2 (8) +O (g) 800 K. The activation energy of the reaction is -1 14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The...
06 Question (1 point) See page 351 2nd attempt See Periodic Table See Hint Although no currently known elements contain electrons in gorbitals, such elements may be synthesized someday. What is the minimum atomic number of an element whose ground-state atoms have an electron in a gorbital? > 1st attempt
penalty 13 Question (4 points) See page 289 1st attempt See Periodic Table O Sce Hint A sample of argon gas at STP occupies 15.0 L. What mass of argon is present in the container?