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George
Questions and answers by
George
, page 3
Questions (615)
Which of the following has the greatest buffer capacity? There are three separate problems below.
1. 0.40 M CH3COONa / 0.20 M
5 answers
8,692 views
The ionization constant Ka of an indicator HIn is 1.0x10^-6. The color of the nonionized form is red and that of the ionized
7 answers
3,080 views
The initial state of a reaction is A2 +B2 –> 2AB. In the initial state of the reaction there are 6 A2’s present and 6 B2’s
3 answers
625 views
in my text book it says that if the calculated value is less than or equal to 0.1 then the color of the conjugate base (In- in
5 answers
386 views
you are right....I wrote it wrong. Does this mean that the solution will be more toward the redish side?
1 answer
301 views
3/w+1 + 2/3w= ?
would the answer be 5/4w+1
1 answer
268 views
To determine the number of deer in a game preserve, a conservationist catches 428 deer, tags them and lets them loose. Later 644
3 answers
687 views
10. The principle of self-government emphasizes majority rule whereas the principle of liberty emphasizes individual rights.
3 answers
459 views
Help! I've been trying to understand this question for quite some time now and every attempt i make at it i get the wrong
2 answers
543 views
Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 30.0 s to speed up from rest
5 answers
5,741 views
Solve algebraically and check
x^2 + 4y^2 = 4 x = 2y - 2
1 answer
324 views
What analytic method steps are required to find the limit of cos x-1/2x^2 ? Limit greater than 0. Estimating -0.25 but stalled
1 answer
436 views
What analytic method steps are required to find the limit of cos x-1/2x^2 ? Limit greater than 0. Estimating -0.25 but stalled
1 answer
419 views
In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is
3 answers
805 views
I don't understand this question.
Q. In the theory of relativity, the mass of a particle with velocity "v" is m = mo/√(1-v2/c2)
1 answer
1,052 views
A long jumper leaves the ground at an angle of 20 degrees and travels a horizontal distanceof 7.0m before landing. What is the
2 answers
932 views
Rank the following Bronsted acids from strongest to weakest:
H-SH H-CH3 H-NH2 H-F H-I
4 answers
1,252 views
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the
1 answer
500 views
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the
1 answer
1,141 views
Differentiate:
y = In ( (x+3) / (x^2) )
1 answer
274 views
What is the force necessary to accelerate an object with a mass of 115 kg and and an acceleration of 6 m/s2 (squared) east?
1 answer
334 views
Factorise
4x^2-7x+3= and 6x^2+10x-5= Thanks Method would be good-as I am stuck.
6 answers
441 views
28=2h-18
3 answers
244 views
Throughout the corporate world, businesses are transforming labor into a more flexible (and variable) cost. Among such companies
1 answer
440 views
Industry downsizing has been a major part of the corporate world, even government agencies are downsizing. GovernmentExecutive
1 answer
541 views
What are the conditions that should be kept constant when we are growing seeds?
ex. The place of plant and etc?
1 answer
334 views
Stock in Country Road Industries has a beta of 0.8940. The market risk premium is 8.7 percent, and T-bills are currently
2 answers
508 views
Rank the relative nucleophilicity of the indicated species in ethanol.
CH3COOH CH3OH CH3COO- CH3S- CH3O- THANK YOU!
4 answers
7,045 views
A catapult throws a projectile at a 40.0° angle with a velocity of 26.0 m/s. How high will the projectile reach, and how far
3 answers
477 views
A bomber is flying at a velocity of 200.0 km/hr with an altitude of 1.5 km. How far (horizontally) from its intended target
3 answers
510 views
You are the physics expert for a professional stuntman. The stunt you have designed includes a ramp that is angled at 30°. You
2 answers
502 views
A launcher fires a projectile with a velocity of 6.31m/s. Determine the horizontal distance of the projectile (in the air) at 5
1 answer
410 views
A super-hero is leaping from the roof of one building onto another. The first building is 120 meters high and the second
1 answer
450 views
Can someone help me get started on this problem?
A launcher fires a projectile with a velocity of 6.31m/s. Determine the
3 answers
496 views
A solid sphere at rest at the top 12.0 m inclined plane rolls down the incline. How high vertically does it rise of the other
3 answers
387 views
A solid disk pulley of mass 2.00 kg and a radius of 30.0 cm is rotated by a block mass of 0.500 kg falling from rest, a distance
3 answers
614 views
The half life of iodine - 131 is 8 days. How long will it take for 7/8 of the sample to decay?
2 answers
487 views
A 14.0 ohm resistor is made from a coil of copper wire whose total mass is 23.0 g. What is the diameter of the wire, and how
4 answers
1,108 views
A tube with a length L is closed at both ends and is filled with air. The wavelength of the fundamental mode of this tube is
3 answers
581 views
In an experiment using sodium light (λ=589 nm), the slits are 1.2 μm wide. You notice that every fourth fringes missing.
a)
2 answers
654 views
What is the chemical formula for this compound?
sodium diamminetetrachloroplatinate(IV)
1 answer
351 views
What is the remainder when the sum of the first 102 counting numbers is divided by 5250?
1 answer
506 views
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams
4 answers
1,764 views
A 22.3 mL sample of a weak monoprotic acid, HX, requires 50.0 mL of 0.040 M NaOH to reach the equivalence point. After the
1 answer
442 views
The Ka values of H3PO4 are shown below.
Ka1 7.5 multiplied by 10-3 Ka2 6.2 multiplied by 10-8 Ka3 4.8 multiplied by 10-13 What is
3 answers
829 views
A 50.0 mL sample of 0.23 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, is titrated with 0.14 M KOH. Ka of CH3CH2COOH =
2 answers
954 views
A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the
4 answers
658 views
compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=$2000
2 answers
710 views
I need to calculate the discharge results for the following dates:
April 4 2:52 mins 1.55 meters 5 2:40 1.63m 6 2:06 1.7m 11 1:17
4 answers
326 views
This is the raw data we got from the river:
The mins it took the tongue depressor to float from point a to b and the depth of the
3 answers
493 views
How do I ocnvert meters into cubic meters?
For example: measuring areas and velocity I come up with this: area 1.55m x 27.47 =
1 answer
330 views
My experiment was to measure the float of a tongue depressor down a river.
The mins it took the tongue depressor to float from
1 answer
450 views
What is the formula for measuring turbidity?
3 answers
400 views
Please give me the formula for measuring turbidity. I already know about the wikipedia defintion and explanation.
Thanks
3 answers
350 views
Here's is what I did:
Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter
3 answers
484 views
Here's is what I did:
Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter
4 answers
455 views
H2C=C=CH2 molecule is linear, what are they hybridization states of the carbon atoms? draw diagrams to show sigma and pi bonds.
4 answers
4,512 views
SiH3-
planar or pyramidal geometric shape?
3 answers
3,917 views
The weight of an apple near the surface of the earth is 1N. What is the weight of Earth in the gravitational field of the apple?
4 answers
2,681 views
What is the IUPAC name for the following molecules:
1. CH3CH2N(CH2CH2CH3)CH2CH3 2. CH3CH2N(CH3)CH2CH3 I tried
3 answers
1,627 views
Hi I have a question about law, like for civics and stuff...
My neighbors foreclosed their house and completely destroyed their
1 answer
434 views
for my CSE 1010 course I solved every single problem in my text book. Sense it's a electronic file I could easily publish it to
1 answer
424 views
Do you guys have a tutor that specialized in computer science? I would expect that you guys would but I just wanted to make
2 answers
539 views
One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of the sequence approach a
2 answers
1,464 views
I guess it was skipped
One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of
1 answer
496 views
Prove that
one over one squared plus one over two squared plus one over three squared....... plus one over 1000 squared is
6 answers
509 views
Hi,
I'm a incoming freshmen to a university. Over the summer I obtained the book that we would be using for a course. I have
7 answers
520 views
ok so I'm learning to solve problems like
cos(x)=2 and sin(x)=5 I've wrapped my head around the process required to do so and I
4 answers
552 views
cos(x)=2
and sin(x)=5 Thanks for your previous answers mathmate. No. It's not a typo. I was wondering if someone could explain to
1 answer
478 views
The notion of statistical significance is frequently used in business to distinguish between true and spurious between-group
3 answers
932 views
If cos2 theta = 1/3 and 0 is less than or equal to 2 theta and 2 theta is less than equal to pi, find cos theta
1 answer
339 views
Cats cost $1, dogs cost $15, and mice cost only $0.25. I want a herd of 100 animals, and I have $100, so being a cat lover, it's
5 answers
625 views
Mrs. Hansen has 84 yards of material available to make school uniforms. Each uniform requires 3 / 4 yard of material. How many
1 answer
488 views
At 4 p.m., what part of a day has elapsed?
1 answer
313 views
Round 0.000453 to the nearest thousandth.
2 answers
511 views
The value of 25 coins, consisting of dimes and quarters, is $ 3.55. How many dimes are in the collection?
1 answer
366 views
John withdrew $ 500 out of his bank savings account. He spent $ 50 on a radio, and 3 / 5 of what remained on gifts for his
3 answers
636 views
The value of 25 coins, consisting of dimes and quarters, is $ 3.55. How many dimes are in the collection?
5 answers
1,335 views
The list price of an item is $ 78.99 and the net price is $ 56.67 . Determine the amount of discount.
4 answers
905 views
Sandy Sanders has an hourly wage of $ 15.00 and is paid time and one half for
all overtime after 40 hours. Calculate Sandy’s
4 answers
562 views
Brand A grape juice sells at one pint for $1.65 and Brand B sells at 14 ounces for $ 1.44 . Which brand has the lower unit
2 answers
1,051 views
When writing decimals in words, write " __________ " for the decimal spot.
(a) decimal (b) sum (c) vertically (d) horizontally
1 answer
387 views
When multiplying decimals, the decimal point in the product is placed so that the number of decimal places in the product is
2 answers
1,101 views
Like fractional notation, __________ notation is used to denote a part of a whole.
4 answers
1,373 views
For 31 hours of work you are paid
$ 361.15. How much would you receive for 33 hours of work? (a) $ 372.80 (b) $ 384.45 (c) $
1 answer
339 views
A farm tractor is pulling 2 pieces of equipment east, with each piece of equipment 25 north and south of the x axis. If it takes
3 answers
491 views
Point T bisects RS. If R(-2,-5) and S(-14,-21), find the coordinates of point T.
2 answers
677 views
An unmarked police car traveling a constant 80 is passed by a speeder traveling 145 .Precisely 2.50 after the speeder passes,
3 answers
1,115 views
I am making an essay about the conditions of our water resources and the issues concerning our water. What is a good title for
1 answer
382 views
Write two to three paragraphs briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that
4 answers
382 views
7. Calculate the difference in the lung volumes of a male athlete who is 62 inches tall and a female athlete who is 56 inches
1 answer
450 views
Aldo invested his savings in two investment funds. The $24, 000that he invested in Fund A returned a 1% profit. The amount that
3 answers
856 views
The annual interest rate on an investment is 8%. What is the quarterly rate?
(a) 1% (b)12% (c) 16% (d)2% (e)3% Can someone help
5 answers
954 views
magnesium nitrate decompses in water and releases ammonia gas. If 355ml of ammonia is produced at STP, whit is the mass of
2 answers
636 views
A cube of wood with a density of 0.780 g/cm3 is 10.0 cm on each side. When the cube is placed in water, what buoyant force acts
4 answers
3,986 views
A water bed that is 1.5 m wide and 2.5 m long weighs 1055 N. Assuming the entire lower surface of the bed is in contact with the
3 answers
2,531 views
Subtract: 7 gal 2 qt 1 pt – 5 gal 3 qt ½ pt
I'm stuck plz help.
1 answer
325 views
Rotating initially at 1800 rpm, a wheel with a diameter of 74.0 cm is brought to rest in 11.0 s. Calculate the magnitude of its
4 answers
633 views
Find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air.
4 answers
1,258 views
The balloon contains 0.30 {\rm mol} of helium starts at a pressure of 115 {\rm kPa} and rises to an altitude where the pressure
2 answers
928 views
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