solution solubility If you wanted to prepare a solution of CO in water at 25 degrees celsius in which the CO concentration was 2.0 mM, what pressure of CO would you need to use?
Calculate the pH of the following solutions Calculate the pH of the following solutions. a) 0.02 M HI b) 5.3 x 10^-3 M KOH c) 6.8 x 10^-5 M HNO3
Kinetics The progress of a reaciton from reactants to products is shown in the following diagram: which curve (A or B) represents the catalyzed reaction?
Determine Q When 10.00 mL of a solution of strong acid is mixed with 100.00 mL of a solution of weak base in a coffee-cup calorimeter, the temperature rises from 20.4 oC to 27.3 oC. Determine q for the acid-base reaction, assuming that the liquids have densities of 1.00 g/mL and the same heat capacities […]
Effective Nuclear Charge a.) Use Slaters rules to calculate Z* for the highest energy electrons in Mg, Mg+ and Mg2+. b.) Use your answers from part a to explain why the second ionization energy of Mg is larger than the first ionization enthalpy. c.) Use your answers from part a to explain why Mg does […]
Solid phosphorus pentabromide, PBr5, Solid phosphorus pentabromide, PBr5, has been shown to have the ionic structure [PBr4+][Br? ]. Write the electron-dot formula of the PBr4+ cation. (Assign atomic charges where appropriate.)
what are the magnatudes and dirrections of these three point charges Three point charges lie along a straight line as shown in the figure below, where q1 = 5.94 µC, q2 = 1.62 µC, and q3 = -2.04 µC. The separation distances are d1 = 3.00 cm and d2 = 2.00 cm. Calculate the magnitude […]
Please Enter a title Julie Jones was hired by a popular fast-food restaurant as an order taker and cashier. Shortly after taking the job, she was shocked to overhear an employee bragging to a friend about shortchanging customers. She confronted the employee who then snapped back, “Mind your own business. Besides, e…
organic If you take equal volumes a 1 M solution of NaCl and 1 M solution of KCl and mix them together, what would be final concentration of the salts? One option is right? explain how you worked it out a.) The concentrations remain unchanged because they are both 1M b.) The concentration of Cl […]
ch 12 3 (2) Classify the types of intermolecular forces present in each of the following fluorides of the second period elements. LiF, melting point 845 oC: a. ionic; b. hydrogen bonding; c. dipole-dipole; d. dispersion. BeF2, melting point 800 oC: a. ionic; b. hydrogen bonding; c. dipole-dipole; d. dispersion.