Iodine clock reaction lab

2I^-(aq) + S₂O₈^2-(aq)à I₂(aq) + 2SO₄^2- (aq)

Rate=k[I^-]^x[S₂O₈^2-]^y  

I need to calculate the initcial concentrations of I- and S2O8^2- then use that to calculate the reaction rate M/sec and the k value.

A vertical summit parabolic curve has vertical offset of 0.375 m. from the curve to the grade tangent at Station 10 + 050. The curve has a slope of +4% and -2% grades intersecting at the P.I. The offset distance of the curve at P.I. is equal to 1.5m. If the stationing of the P.C. is at 10 + 000.

Compute the (a) required length of curve (b) horizontal distance of the vertical curve turning point from the point of intersection of the grades. (c) elevation of the vertical curve turning point if the elevation of P.T. is 86.42 m

(C++)Problem #1: Coin Tossing Simulation: Write a program that simulates coin tossing. Let the program prompt the user to enter the number of tosses N and count the number of times each side of the coin appears. Print the results. The program should call a separate function flip() that takes no arguments and returns 0 for tails and 1 for heads. The program should produce different results for each run.

Sample Input / Output

Enter the number of tosses N: 1000

The total number of Heads is: 495

The total number of Tails is: 505

Determine the pH of a solution that is 1.85% NaOH by mass. Assume that the solution has density of 1.01 g/mL.

Explain why no organelles, such as a nucleus, are seen in the Anabaena. (Please type it out)

13A. Which fallacy does the following statement or argument commit: “Ghetto neighborhoods are unclean. Often you find garbage strewn in the streets. This must be because the residents are unclean.”(a) weak analogy(b) Untestability(c) False cause(d) Slippery slope(e) accident

1a. Which fallacy does the following statement or argument commit: “Protesting against racial injustice only causes more of it to occur.”(a) Straw man(b) Hasty generalization(c) False cause(d) Untestability(e) Accident

thank you :))

Assuming that a pregnant woman wants to apply virtue ethics to the dilemma of abortion, what specific character traits/virtues should she emulate and why? What is the source of these specific character traits/virtues? Are they gender specific (i.e., applicable only to women) or they gender neutral (i.e., applying to men as well as women)? Why?

A person is seated in a swivel chair. The moment of inertia around the swivel point will be about 3.0 kg m2for the person and chair combined. If their "friend" starts to spin them, changing their rate of rotation from 1.5 rad/s to 2.0 rad/s in 2.5 s, the net torque being applied is:
a. 0.60nm
b. 1.1nm
c. 2.4nm
d. 3.8nm
e. none of these

A person is seated in a swivel chair. The moment of inertia around the swivel point will be about 3.0 kg m2for the person and chair combined. If their "friend" starts to spin them, producing an angular acceleration of 4.0 rad/s2 for 5.0 s, the net torque being applied is:
a. 0.75nm

b. 1.3nm
c. 2.4nm
d. 12nm
e. none of these.

A person is seated in a swivel chair. The moment of inertia around the swivel point will be about 3.0 kg m2for the person and chair combined. When spinning at 2.0 rad/s, they will be brought to rest by friction in the bearings which applies a net torque whose magnitude is a constant 1.3 n m. How long will it take for them to stop?

1. 0.51 s

2. 4.6s

3. 5.0s

4. 8.7s

5. none of these.

How many ways can you see that heat can transfer from the inside to the outside of your room on a cold day? List at least three and describe in detail how heat moves through the different kinds of materials (glass, brick, wood, insulation, etc.)—by conduction, convection or radiation. Which process do you suppose dominates?

Customers arrive at a local grocery store at an average rate of 2 per minute.

(a) What is the chance that no customer will arrive at the store during a given two minute period?

(b) Since it is a “Double Coupon” day at the store, approximately 70% of the customers coming to the store carry coupons. What is the probability that during a given two-minute period there are exactly four (4) customers with coupons and one (1) without coupons?

(c) Divide one given hour into 30 two-minute periods. Suppose that the numbers of customers arriving at the store during those periods are independent of each other. Denote by X the number of the periods during which exactly 5 customers arrive at the store and 4 of them carry coupons. What is the probability that X is at least 2?

(d) What is the probability that exact 4 customers coming to the store during a given two-minute period carry coupons?

1a) Suppose your company is faced with the following demand curve: Q^D = 600 – 100 P. The price elasticity of demand, E^D , at a price of $5 equals _____, and the price elasticity of demand, E^D, at a price of $1 equals _____

1b) Assume that the demand equation for exercise watches, such as the Fitbit, is Q^D = 2,200 – 15 P and the supply equation is Q^S = 15 P – 800. After a favorable study shows that using exercise watches significantly reduces users' weights, quantity demanded increases by 300 at every price. The new equilibrium price will be _____ and the new equilibrium quantity will be ____

1c)In the market for oranges, we observe that the equilibrium price increased and the equilibrium quantity increased. What could have caused this change?

1d)The demand curve for a good is Q = 80 – 0.20 P, where Q is the quantity demanded and P is the price per unit. This good's inverse demand curve is:

Calculate how many milliliters of 0.663 M KOH should be added to 5.00 g of MOBS (see Table 8-2) to give a pH of 7.40. pKa=7.6. molecular weight=123.29

A 85.3-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.16 x 103 N/m. He accidentally slips and falls freely for 0.757 m before the rope runs out of slack. How much is the rope stretched when it breaks his fall and momentarily brings him to rest?

1-

Physical restrictions on the order in which operations are performed on an assembly line are referred to as precedence requirements.

Select one:

True

False

2-

Assembly line balancing operates under one constraint.

Select one:

True

False

3-

Muther’s grid is a format for displaying manager preferences for department locations.

Select one:

True

False

4-

Shipbuilding is an example of a fixed-position layout.

Select one:

True

False

5-

Cycle time is no different than flow time.

Select one:

True

False

6-

Cellular layouts reduce transit time and set-up time but they increase in-process inventory.

Select one:

True

False

7-

A product layout requires multidirectional material and product flows.

Select one:

True

False

8-

Cellular layouts attempt to combine the flexibility of process layouts with the efficiency of product layouts.

Select one:

True

False

9-

Inefficiency is a disadvantage of a process layout.

Select one:

True

False

10-

Most service organizations use process layouts.

Select one:

True

False