Write an equation for the acid-base equilibrium of: (a) Pyrrolidine and water (b) Pyridine and water Label each species in the equilibrium as either an acid or a base.

Describe the makeup of a complex ion, including the nature of the ligands and their interaction with the central metal ion. Explain how a complex ion can be positive or negative and how it occurs as part of a neutral coordination compound.

What is the value of K for this aqueous reaction at 298 K? Delta G= 13.75 Kj/molA+B<--> C+D

draw the structure for cis-2,3-dibromo-2-hexene

A dolphin wants to swim directly back to its home bay, which is 0.80 km due west. It can swim at a speed of 4.00 m/s relative to the water, but a uniform water current flows with speed 2.83 m/s in the southeast direction. (a) What direction should the dolphin head? (b) How long does it take the dolphin to swim the 0.80 km distance home?

What would be the consequence if a cells were unable to replicate its DNA?

A woman who weighs 600 N sits on a chair with her feet on the floor and her arms resting on the c hair's armrests. The chair weighs 100 N. Each armrest exerts an upward force of 25 N on her arms. The seat of the chair exerts an upward force of 500 N. (a) What force does the floor exert on her feet? (b) What force does the floor exert on the chair? (c) Consider the woman and the chair to be a single system. Draw an FBD for the system mat includes only the external forces acting on it.

Which of the following is not found on a Safety Data Sheet (SDS)?

A. Exposure controls/personal protection

B. Hazard training requirements

C. Hazard(s) identification

D. Toxicological information

Khalid suffers from anxiety and takes medication that works well to help him feel calm. The medication likely affects which primary neurotransmitter in the brain?

The weight of an object at the surface of a planet is proportional to the planet's mass and inversely proportional to the square of the radius of the planet. Jupiter's radius is 11 times Earth's, and its mass is 320 times Earth's. An apple weighs 1.0 N on Earth. How much would it weigh on Jupiter?

What is the approximate pH of a 0.02 M solution of a strong monoprotic acid? Of a 0.02 M solution of a strong base, such as KOH?

The electrode of a pH meter is placed in a sample of urine, and a reading of 7.9 is obtained. Is the sample acidic, basic, or neutral? What is the concentration of $\mathrm{H}_3 \mathrm{O}^{+}$in the urine sample?

A solution of 0.10 M HCl has a pH=1.00, whereas a solution of 0.10 M $\mathrm{CH}_3\mathrm{COOH}$ has a pH=2.88. Explain.

Draw the structural formulas for two compounds having the molecular formula $\mathrm{C}_2 \mathrm{H}_4 \mathrm{O}$. What is the molecular geometry around the carbon atoms in each of these molecules? Would these molecules be polar or nonpolar?