(a) Is the concentration of a solution an intensive or an extensive property? (b) What is the difference between 0.50 mol HCl and 0.50 M HCl?

Introductory Chemistry 5
How many neutrons are in an atom with each atomic number and mass number? (a) Z = 28, A = 59 (b) Z = 92, A = 235 (c) Z = 21, A = 46 (d) Z = 18, A = 42

An Introduction to Thermal Physics 1
Problem 32P Find an expression for the entropy of the two-dimensional ideal gas considered in below Problem. Express your result in terms of U, A, and N. Problem: Consider an ideal monatomic gas that lives in a two-dimensional universe (flatland), occupying an area A instead of a volume V. By followi

College Physics 1
Problem 20PE At takeoff, a commercial jet has a 60.0 m/s speed. Its tires have a diameter of 0.850 m. (a) At how many rev/min are the tires rotating? (b) What is the centripetal acceleration at the edge of the tire? (c) With what force must a determined 1.0010?15 kg bacterium cling to the rim? (d)

Fundamentals of Physics 10
The plates of a spherical capacitor have radii 38.0 mm and 40.0 mm. (a) Calculate the capacitance. (b) What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance?

Campbell Biology 9
The reactivity of an atom arises from a. the average distance of the outermost electron shell from the nucleus. b. the existence of unpaired electrons in the valence shell. c. the sum of the potential energies of all the electron shells. d. the potential energy of the valence shell. e. the energy dif

The Practice of Statistics 5
Baby birds Do birds learn to time their breeding? Blue titmice eat caterpillars. The birds would like lots of caterpillars around when they have young to feed, but they must breed much earlier. Do the birds learn from one years experience when to time their breeding next year? Researchers randomly as

Psychology 5
What best explains why smells can have immediate and powerful effects? a. the involvement in smell of brain centers for emotions and memories b. the vast number of olfactory receptor neurons we have c. our ability to detect odors from pheromones d. the fact that different odorant molecules produce v

Introductory Chemistry: A Foundation 9
Explain, in terms of the kinetic molecular theory, how an increase in the temperature of a gas confined to a rigid container causes an increase in the pressure of the gas.