A 0.0333 M solution of a particular weak base, B, has a pH of 8.30 at 298 K. What is Δ G° for the following equilibrium? B(aq) + H2O(l) BH+(aq) + OH–(aq)
a. 32.5 kJ

b. 47.3 kJ

c. 8.42 kJ

d. 56.5 kJ

e. 86.2 kJ

Which feature do highland climates have that lower elevation areas do not?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy