Sydney

Hopefully the file will work. I have done questions 1 and 2, I am just struggling with how to do 3-6. If anyone knows of a helpful video, that works as well. 

file:///C:/Users/Sydney/Downloads/Lab1PreLabQuestions.163spring2021.pdf

Consider the reaction with an initial concentration of Ao= 6.00Mand a half-life of 65.0 minutes.

 If this reaction is zero order with respect to A, how many minutes will it take for the concentration of A to reach 0.504M?

Reaction: 2 ICl + H2 I2 + 2 HCl (all gases)

Experimental results: The rate is halved when [ICl] x ½

The rate triples when [H2] x 3

a) What is the order in each reactant?

b) What is the rate law?

c) What is the overall order?

d) By what factor will the rate change if both [ICl] and [H2] are doubled?

e) By what factor will the rate change if [ICl] is tripled and [H2] is cut x ¼?

f) What are the units for the rate constant k?

Reaction: 2 ICl + H2 I2 + 2 HCl (all gases)

Experimental results: The rate is halved when [ICl] x ½

The rate triples when [H2] x 3

a) What is the order in each reactant?

b) What is the rate law?

c) What is the overall order?

d) By what factor will the rate change if both [ICl] and [H2] are doubled?

e) By what factor will the rate change if [ICl] is tripled and [H2] is cut x ¼?

f) What are the units for the rate constant k?

Hello,

I am doing a project where we need to determine the intermolecular forces for vanillin( between 2 molecules). I have Hydrogen bonding( between hydrogen and oxygen) and dipole dipole so far( between a hydrogen and carbon). Is this right? and are these the only 2 IMFs?

Thank you!

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 24 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)

I keep getting 27.27 as the answer and and not sure what I am doing incorrect. 

Thank you!

Two curves which intersect at a certain point are said to be normal to each other at

that point if their tangent lines at that point are perpendicular to each other. The circles (𝑥 −6)^2 + (𝑦 − 17)^2 = 100 and 𝑥^2 + 𝑦^2 = 225 intersect at the point (12,9).Show that the circles are normal to each other at that point.

Are you trying to show the slopes are the same? When I did it I got -(x-6)/(y-17) and 

-x/y. giving me 2 different slopes.

Not sure how to complete this question.(x^2sinx)/(e^x(2x^3+x)) Do you find the derivative of the top and bottom first then use the quotient rule for it?

Thank you!

Use the limit definition of the derivative to find 𝑓′(𝑥) if 𝑓(𝑥) = 𝑥

10. Expand all the way out. I came up with a 10 term answer, not sure if that correct or not.

Thank you!

 Sketch a graph of a single function having all of the following features. Six points.

lim𝑥→−∞(𝑓(𝑥)) = 2,

 lim𝑥→−2^−(𝑓(𝑥)) = ∞, 

lim𝑥→−2 ^+(𝑓(𝑥)) = −∞, 

lim𝑥→4 (𝑓(𝑥)) = −∞ 

lim𝑥→∞ (𝑓(𝑥)) = −4

𝑠(𝑡) = −16𝑡^2 + 64𝑡 + 100 

A. Determine the tomato’s average velocity over the interval [𝑎, 𝑎 + ℎ] (i.e., from 𝑡 = 𝑎 to 𝑡 = 𝑎 + ℎ).

Simplify your answer completely.

I keep getting 8a+4h-16 as my final answer

For a purple solution of unknown concentration, the absorbance at 572nm is measured to be 0.289. What is the concentration of this solution?

I need to find the initial and final energy states from these wavelengths. How do you go about doing that? (n=? to n?)

954.60 nm

1004.94 nm

1093.81 nm

1875.10nm

Thank you!

A large boulder needs to be dragged to a new position. If pulled directly horizontally, the boulder would require 400 pounds of pulling force to move. We need to pull the boulder using a rope tied to the back of a large truck, forming a 15°angle from the ground. How much force will the truck need to pull with?

Thank you!!

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 58 and 92 degrees during the day and the average daily temperature first occurs at 8 AM. How many hours after midnight, to two decimal places, does the temperature first reach 63 degrees?

A small radio transmitter broadcasts in a 56 mile radius. If you drive along a straight line from a city 72 miles north of the transmitter to a second city 62 miles east of the transmitter, much of the drive will you pick up a signal from the transmitter?

Does anyone know how much rain goes trough a gutter per minute with about an inch of rain?