OC userin Chemistry·4 Nov 201731. Calculate the percent ionization of a 0.15 M benzoic acid solu- tion in pure water and in a solution containing 0.10 M sodium benzoate. Why does the percent ionization differ significantly in the two solutions?
OC userin Physics·5 Nov 20171.3. How many nanoseconds does it take light to travel 1.00 ft in vacuum? (This result is a useful quantity to remember.)
OC userin Chemistry·6 Nov 201735. The distance from the sun to Earth is 1.496 X 108 km. How long does it take light to travel from the sun to Earth?
OC userin Chemistry·6 Nov 2017Q13. Which distribution of six particles into three interconnected boxes has the highest entropy? a) O b) 0 . o ! d) 00-03
OC userin Accounting·4 Nov 2017EXERCISE 7-8 Computing and Interpreting Activity Rates [LO7-3] (This exercise is a continuation of Exercise 7–7; it should be assigned only if Exercise 7-7 is also assigned.) The manager of the Westfield branch of Security Home Bank has provided the follow- ing data concerning the transactions of the branch during the past year: Total Activity at the Westfield Branch Activity Opening accounts ......... Processing deposits and withdrawals ..... Processing other customer transactions ... 500 new accounts opened 100,000 deposits and withdrawals processed 5,000 other customer transactions processed The lowest costs reported by other branches for these activities are displayed below: Lowest Cost among All Security Home Bank Branches Activity Opening accounts ..................... Processing deposits and withdrawals ...... Processing other customer transactions .... $26.75 per new account $1.24 per deposit or withdrawal $11.86 per other customer transaction Required: 1. Using the first-stage allocation from Exercise 7-7 and the above data, compute the activity rates for the activity-based costing system. (Use Exhibit 7-7 as a guide.) Round all computa- tions to the nearest whole cent. 2. What do these results suggest to you concerning operations at the Westfield branch?
OC userin Accounting·6 Nov 20172-1 What are the three major elements of product costs in a manufacturing company?
OC userin Chemistry·4 Nov 2017130. The ratio of the mass of O to the mass of N in N2O3 is 12:7. An- other binary compound of nitrogen has a ratio of O to N of 16:7. What is its formula? What is the ratio of O to N in the next member of this series of compounds?
OC userin Physics·3 Nov 20179.9. A bicycle wheel has an initial angular velocity of 1.50 rad/s. (a) If its angular acceleration is constant and equal to 0.200 rad/s?, what is its angular velocity at t = 2.50 s? (b) Through what angle has the wheel turned between t = 0 and t = 2.50 s?
OC userin Chemistry·2 Nov 2017Q5. What is the rate constant for the reaction in Question 4? a) 2.8 x 10-M-2.5-1 b) 14 M-2.5-1 c) 1.4 x 10-M-2.5-1 d) 1.4 x 103 M-2.5-1
OC userin Physics·3 Nov 20171.53 • BIO Breathing Oxygen. The density of air under stan- dard laboratory conditions is 1.29 kg/m", and about 20% of that air consists of oxygen. Typically, people breathe about 1 L of air per breath. (a) How many grams of oxygen does a person breathe in a day? (b) If this air is stored uncompressed in a cubical tank, how long is each side of the tank?
OC userin Chemistry·3 Nov 2017119. A 67.2 g sample of a gold and palladium alloy contains 2.49 X 1023 atoms. What is the composition (by mass) of the alloy?
OC userin Physics·3 Nov 201742. Calculate the pH of the solution that results from each mixture. a. 150.0 mL of 0.25 M HF with 225.0 mL of 0.30 M NaF b. 175.0 mL of 0.10 M C2H5NH2 with 275.0 mL of 0.20 M C2H5NH3C1
OC userin Physics·3 Nov 201788. Calculate the number of atoms in each sample. a. 14.955 g CT b. 39.733 g S c. 12.899 g Pt d . 97.552 g Sn
OC userin Physics·2 Nov 20175.17 . A light rope is attached to a block with mass 4.00 kg that rests on a frictionless, horizontal surface. The horizontal rope passes over a frictionless, massless pulley, and a block with mass m is suspended from the other end. When the blocks are released, the tension in the rope is 15.0 N. (a) Draw two free-body diagrams: one for each block. (b) What is the acceleration of either block? (c) Find m. (d) How does the tension compare to the weight of the hanging block?
OC userin Accounting·2 Nov 20172-5 What effect does an increase in volume have on- a. Unit fixed costs? b. Unit variable costs? C. Total fixed costs? d. Total variable costs?