A current of 5 mA flows through a 2 mm inner-diameter glass tube filled with 1.0 mol dm-3 NaCl(aq) solution in the anode compartment in addition to a CH3COONa (aq) solution in the cathode compartment. The boundary created between the two solutions moves 6.05 mm towards the anode in 10 minutes. Calculate the transport number of the chloride ion in the solution.

Explain how you would make 1.0 L of a 1.05 M acetate buffer if you only have

sodium acetate, DI H2O and 6 M HCl available? PH is 4.6

The pKa of ammonium (NH4+) is 9.24.

a. What is the predominant form (ammonium or ammonia) of this

chemical when the pH of the solution is 7.85?

b. One liter of solution is made using 0.25 moles of NH4Cl and 0.07 moles

of NH3. What is the pH of this solution? Recall that the Henderson-

Hasselbalch equation can be written in the form pKa = pH –

log([base]/[acid])

c. You have NaOH and HCl at your disposal. Which one would you use,

and how many moles would you need, in order to titrate the solution to

pH 9.86? Ignore any change in volume.

4-bromobenzoic acid (1.0 g) is dissolved in 20 ml dichloromethane. After addition to a separatory funnel, the dichloromethane solution is treated with 20 ml 3.0 M NaOH solution. After the layers are separated, which layer(s) will contain an organic compound (non-solvent)? What would happen if the aqueous layer is treated with 20 ml 3.0 M HCl?

Globalization 1.0—The Columbus days when we first explored the world and realized there were other civilizations on earth

Globalization 2.0—The 1800s through the industrial revolution when multinational corporations began to conduct business overseas

Globalization 3.0—The utilization of different countries to increase efficiency and lower costs

Globalization 4.0 - enables people to instantaneously conduct business and promptly access files from anywhere.

Are we entering Globalization 4.0?

Look for any evidence of that in the news and give examples.

Data Table A. Stock solution concentrations of HCl, H₃PO₄ and NaOH

Data Table B. Temperature data for combinations of NaOH and HCl(aq)

Data Table C. Temperature data for combinations of NaOH and H₃PO₄

(a) Based on the amount of product formed in each of the mixing experiments (that is, the "final" line in each reaction table), which experiments involving NaOH and HCl, if any, would you expect to give the same temperature changes? (Select all that apply.)

experiment #1

experiment #2

experiment #3

(b) Based on the amount of product formed in each of the mixing experiments (that is, the "final" line in each reaction table), which experiments involving NaOH and H₃PO₄, if any, would you expect to give the same temperature changes? (Select all that apply.)

experiment #4

experiment #5

experiment #6

Simple​ Simon's Bakery purchases supplies on terms of 1.0/10 net 25. If Simple​ Simon's chooses to take the discount​ offered, it must obtain a bank loan to meet its​ short-term financing needs. A local bank has quoted Simple​ Simon's owner an interest rate of 12.0%on borrowed funds. Should Simple​ Simon's enter the loan agreement with the bank and begin taking the​ discount? ​ (Use 365 days for a​ year.)

Ohio Valley Homecare​ Suppliers, Incorporated​ (OVHS) had $20 million in sales in 2015. Its cost of goods sold was $8.0

million, and its average inventory balance was $1.7 million.

a. Calculate the number of inventory days outstanding for OVHS.

b. The average number of inventory days in the industry is 73 days. By how much would OVHS reduce its investment in inventory if it could improve its inventory days to meet the industry​ average?

A robot equipped with a differential drive starts at the position ?=1.0?, ?=2.0?x=1.0m, y=2.0m,  with a pose (heading) of ?=90∘=?2θ=90∘=π2radians. The aim is for it to move to the position ?=1.5?, ?=2.0?x=1.5m, y=2.0m with a pose of ?=90∘=?2θ=90∘=π2. The distance between the wheels is ?=0.5?l=0.5m. The movement of the vehicle is described by the parameters of the velocity of the left wheel ??vl, the right wheel ??vr and the driving time ?t.

Assuming that the robot may have to execute a sequence of moves to get from the initial location to the target location, what is the minimum number of moves required to move the vehicle to the desired target location? Include in your answer the values of the parameters (??,??,?)(vl,vr,t) for each move.

What is the length of the shortest trajectory (i.e. path or distance travelled along the trajectory) given the sequence of moves in part A.

A 4.0-cm-diameter parallel-plate capacitor with a 1.0 mm spacing is charged to 1000 V. A switch closes at t =0s, and the capacitor is discharged through a wire with 0.20? resistance.

Part A

Find an expression for the magnetic field strength inside the capacitor at r =1.0cm as a function of time t (where t is in ps).

Part B

Draw a graph of B versus t.

7. Ball X of mass 1.0 kg and ball Y of mass 0.5kg travel toward each other on a horizontal surface. Both balls travel with a constant speed of 5 m/s until they collide. During the collision, ball Y exerts an average force with a magnitude of 40N for 1/6s on ball X . Which of the following best predicts ball momentum after the collision?

A Ball Y will travel at a speed less than 5 m/s in the same direction of travel as before the collision.

B Ball Y will travel at a speed less than 5 m/s in the opposite direction of travel as before the collision.

C Ball will travel at a speed greater than 5 m/s in the same direction of travel as before the collision.

D Ball Y motion cannot be predicted because the impulse on it is not known.

The answer is C but I do not understand why. Please refrain from using any Calculus