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Questions Asked on March 31, 2008

The Ksp of Ag2CrO4(s) is 1.12 x 10^-12. Calculate the molar solubility of AgCrO4(s)a)in pure water b) in a solution of 0.10
1. 3 answers
2. asked by ChemMaster98
3. 6,993 views
Medical x rays are taken with electromagnetic waves having a wavelength around .1 nm. What are the frequency, period, and wave
1. 2 answers
2. asked by J
3. 4,678 views
An elastic cord is 65 cm long when a weight of 75 N hangs from it but is 85 cm long when a weight of 189 N hangs from it. What
1. 1 answer
2. asked by leena
3. 4,671 views
Profit equals revenue minus cost. P=R-C. Rewrite the formula to solve for C.
1. 5 answers
2. asked by Patricia
3. 4,312 views
Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is
1. 3 answers
2. asked by Spencer
3. 4,020 views
solution of hydrogen peroxide, H2O2 , is titrated with potassium permanganate, KMnO4 , according to the following equation:5
1. 1 answer
2. asked by Brenan
3. 3,021 views
You have a 0.600-m-long copper wire. You want to make an N-turn current loop that generates a 1.30 mT magnetic field at the
1. 2 answers
2. asked by Spencer
3. 2,604 views
For 0 < x < PI/2, if y = sin(x)^x, then dy/dx is..I understand that you can take the natural logarithm of both sides and then
1. 2 answers
2. asked by Anonymous
3. 2,401 views
A worker on scaffolding 75 ft above the ground needs to lift a 500 lb bucket of cement from the ground to point 30 ft above the
1. 1 answer
2. asked by Jessica
3. 2,257 views
Urea, NH2CONH2, is manufactured from ammonia and carbon dioxide according to the following equation:2 NH3 (g) + CO2 (g) ->
1. 3 answers
2. asked by Brenan
3. 2,088 views
Considerable scientific work is currently underway to determine whether weak oscillating magnetic fields such as those found
1. 1 answer
2. asked by Chris Adison
3. 1,896 views
When a solar flare erupts on the surface of the sun, how many minutes after it occurs does its light show up in an astronomer's
1. 3 answers
2. asked by J
3. 1,838 views
Much of the brown haze hanging over large cities is nitrogen dioxide, NO2(g). Nitrogen dioxide reacts to form dinitrogen
1. 3 answers
2. asked by ChemMaster98
3. 1,823 views
The velocity of an aiplane heading east at 400 knots and a wind velocity of 50 knots northeast. The airplane encounters this
1. 4 answers
2. asked by Julie
3. 1,782 views
18)An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18.0 m/s northward and the air speed of
1. 3 answers
2. asked by Jon
3. 1,753 views
What is the pH of a 0.570 M solution of aniline? Kb = 7.4 × 10-10
1. 1 answer
2. asked by nelson
3. 1,690 views
When carbon dioxide is heated in a closed container, it decomposes into carbon monoxide and oxygen according to the following
1. 2 answers
2. asked by Laureta
3. 1,677 views
Calculate the number of coulombs of positive charge in 261 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton;
1. 1 answer
2. asked by dave
3. 1,631 views
1. What is the [K+] of a solution prepared by dissolving 0.140 g of potassium hydroxide insufficient pure water to prepare 250.0
1. 1 answer
2. asked by nelson
3. 1,539 views
How many grams of nickel can be produced by passing a current of 15.0A through aqueous nickel(II) chloride for 80.0 minutes?I'm
1. 1 answer
2. asked by Ginger
3. 1,521 views
When carbon dioxide is heated in a closed container, it decomposes into carbon monoxide and oxygen according to the following
1. 3 answers
2. asked by Thomas
3. 1,435 views
How will the following system at equilibrium shift in each of the following cases?2 SO3(g) <--> 2 SO2(g) + O2(g) H° = 197 kJ
1. 1 answer
2. asked by PHD Hopeful
3. 1,330 views
6)Which of Newton's laws would best explain what causes a basketball to bounce?Third 7)Which of Newton's laws would best explain
1. 1 answer
2. asked by Jon
3. 1,301 views
Please proofread this paper (without paragraphing... sorry) Thank you so much!Jane Goodall, the eminent woman known for changing
1. 2 answers
2. asked by Anonymous
3. 1,297 views
In conjunction with a standard hydrogen electrode, the La3+|La half-cell is the anode and the standard cell potential is 2.52V.
1. 1 answer
2. asked by Ginger
3. 1,278 views
Calculate the solubility of silver chloride in a 0.1 mol/L solution of sodium chloride at 25°C.?At SATP, Ksp AgCl(s) = 1.8 x
1. 1 answer
2. asked by Marcus 2nd question
3. 1,219 views
A company has two major businesses that it operates. One business manufactures and sells unicycles for commercial use in
1. 1 answer
2. asked by Anonymous
3. 1,210 views
n Fig. 21-41, three identical conducting spheres initially have the following charges: sphere A, 7Q; sphere B, -8Q; and sphere
1. 3 answers
2. asked by dave
3. 1,207 views
Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is
1. 4 answers
2. asked by Spencer
3. 1,186 views
We can reasonaly model a 75 W incandescent lightbulb as a sphere 6 cm in diameter. Typically, only about 5% of the energy goes
1. 1 answer
2. asked by J
3. 1,185 views
List 3 examples of alliteration found in Beowulf.
1. 1 answer
2. asked by Morgan
3. 1,172 views
How do you work square root problems when there is a number outside the radical that needs to be divided out.Example: 2(square
1. 16 answers
2. asked by Catey
3. 1,163 views
1. Determine whether the following arguments are valid or invalid. If valid determine whether they are sound. Be sure to explain
1. 1 answer
2. asked by Justin
3. 1,121 views
a simple harmonic oscillator consists of a block of mass 2 kg attached to a spring of spring constant 100 N/m. when t=1 s, the
1. 1 answer
2. asked by Sarah
3. 1,102 views
Budget is 118,250.00. Write an algebraic expression that is 25% of budget for business space and utilities.
1. 3 answers
2. asked by Patricia
3. 1,091 views
1. Assume a perfectly competitive constant cost industry, currently in long-run equilibrium. Marketdemand in the industry is
1. 1 answer
2. asked by Chi
3. 1,076 views
Animals have been used in medical research for centuries. Most of the animals used for research are rodents such as rats, mice,
1. 3 answers
2. asked by Walker
3. 1,066 views
a paint supplier has two machines that prouce both indoor paint and outdoor paint. to meet its contractual obligations,the
1. 0 answers
2. asked by marisol
3. 1,045 views
9)You are taking a road trip to the beach for Spring Break. You leave at 12:00pm. At 12:10 you stop for lunch 10 miles down the
1. 3 answers
2. asked by Jon
3. 1,045 views
What is solubility of CaF2 in a solution buffered at pH 5
1. 1 answer
2. asked by Karen
3. 1,043 views
sorry I am so lost I missed the class that talked about logs since my sister was in the hospital giving birth to a still born
1. 1 answer
2. asked by Deb
3. 1,029 views
I was given an equation by bobpursey but I don't know what it means.Considerable scientific work is currently underway to
1. 1 answer
2. asked by Chris Adison
3. 1,019 views
a paint supplier has two machines that prouce both indoor paint and outdoor paint. to meet its contractual obligations,the
1. 1 answer
2. asked by wendy
3. 1,000 views
In TV picture, faint, slightly offset ghost images are formed when the signal from the transmitter travels to the receiver both
1. 2 answers
2. asked by J
3. 981 views
why and how could you apply critical thinking when evaluating articles, media, advertising, and conversations?
1. 1 answer
2. asked by Kevin
3. 977 views
During 2004, japanese scientists successfully tested two solar sails. One had somewhat complicated shape that we shall model as
1. 1 answer
2. asked by J
3. 977 views
how do you find the perimeter of a triangular pyramid
1. 2 answers
2. asked by Jordan
3. 972 views
True/False3)The position-time graph of an object moving with a constant average velocity is always a straight line. True 4)A
1. 1 answer
2. asked by Jon
3. 950 views
I have to write sentences with subjunctive verbs in them, and I'm supposed to remember WEIRDO to help me remember the uses of
1. 3 answers
2. asked by Ausyn
3. 931 views
The entropy of combustion of benzoic acid is zero. This means that...a)combustion is not spontaneous here. b)combustion is
1. 1 answer
2. asked by Ginger
3. 927 views
Does anyone know any or know where I may find some quotes by General George Meade?
1. 1 answer
2. asked by Britney
3. 920 views
What does he look like?He is tall and thin. He is tall and of medium weight. He is neither tall not heavy. He is short and thin,
1. 1 answer
2. asked by John
3. 901 views
Calculatet the solubility of silver chloride in a 0.10 mol/L solution of sodium chloride at 25 degrees celsius.At SATP, Ksp
1. 7 answers
2. asked by MiMi
3. 898 views
Could someone read this paper for me and tell me if it is ok? It is the first time that I had to cite APA style and I wasn't
1. 3 answers
2. asked by Emily
3. 896 views
2.241g sample of nickel reacts w oxygen to form 2.85g of the metal oxide. Calculate the empirical formula of the oxide?
1. 5 answers
2. asked by lizzie
3. 893 views
how do you simplify square root of 27 minus square root of 49 all divided by square root of 3. I have gotten two different
1. 2 answers
2. asked by Casey
3. 861 views
An 1567 kg car, being lifted at a steady speed by a crane, hangs at the end of a cable whos radius is .0084. The cable is 5m in
1. 1 answer
2. asked by Erich
3. 828 views
Given the equilibrium system PCL5(g) <----->PCl3(g) + Cl2(g)K = 12.5 at 60 degrees celsius. A 1.0 L reaction vessel is analyzed
1. 1 answer
2. asked by ChemMaster98
3. 823 views
I would like to enquire if you could help with the following assignment question.The exact assignment question is: Explain how
1. 0 answers
2. asked by shreya
3. 794 views
A 500 turn solenoid with a length of 20 cm and a radius of 1.5 cm carries a current of 2.0 A. A second coil of four turns is
1. 1 answer
2. asked by Chris Adison
3. 769 views
i'm looking for 1st grade activities on the topic of rights and responsibilities
1. 1 answer
2. asked by debbie
3. 753 views
when ammonium nitrate decomposes, nitrogen, hydrogen, and oxygen gas are generated per the reaction
1. 3 answers
2. asked by bill
3. 740 views
What effect did Florida,Louisiana, and South Carolina have on the election of 1876?
1. 1 answer
2. asked by Sue
3. 735 views
Calculate the Calorimeter Constant if 25 g of water at 58C was added to 25 g of water at 25C with a resulting temperature of
1. 1 answer
2. asked by bipasha
3. 733 views
(a) What equal positive charges (in Coulombs) would have to be placed on two celestial objects with masses 9.40 x 1027 and 1.99
1. 2 answers
2. asked by dave
3. 695 views
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a
1. 1 answer
2. asked by gerald
3. 691 views
A 500 turn solenoid with a length of 20 cm and a radius of 1.5 cm carries a current of 2.0 A. A second coil of four turns is
1. 0 answers
2. asked by Chris Adison
3. 690 views
1. How many traits are involved in a monohybrid cross? How many alleles are involved?2. What prevents the expression of a
1. 2 answers
2. asked by Amanda
3. 687 views
What year was Hans and Zacharias Janssen born?
1. 1 answer
2. asked by Nunya
3. 673 views
Please calculate the solubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP.This very question has been bugging me
1. 1 answer
2. asked by Marcus
3. 664 views
A Geiger counter measures redioactive decay by registering the electrical pulsed produced in a gas tube when high-energy
1. 1 answer
2. asked by TJ
3. 656 views
Dr. Stephanie White, the Chief Administrator of Uptown Clinic, a community mental health agency, is concerned about the dilemma
1. 0 answers
2. asked by Anonymous
3. 651 views
how do you simplify square root of 27 minus square root of 49 all divided by square root of 3. I have gotten two different
1. 1 answer
2. asked by Casey
3. 650 views
Dr. Stephanie White, the Chief Administrator of Uptown Clinic, a community mental health agency, is concerned about the dilemma
1. 0 answers
2. asked by Anonymous
3. 650 views
Animals have been used in medical research for centuries. Most of the animals used for research are rodents such as rats, mice,
1. 1 answer
2. asked by Walker
3. 643 views
15)If a horizontal force applied on a resting object is greater than the force of friction, the object will.accelerate in the
1. 0 answers
2. asked by Jon
3. 642 views
1. A perfectly competitive industry comprises of 35 competitive, profit-maximizing firms, each of whichhas short-run total costs
1. 1 answer
2. asked by Chi
3. 634 views
i need to know if there are any technologies that were developed from the knowledge of static electricity. I also need to know
1. 0 answers
2. asked by riley
3. 629 views
Good day to everyoneMy class has just started a "Chemistry systems in Equilibrium" unit and I have a question I would like
1. 3 answers
2. asked by Jessica
3. 627 views
I am writing an essay on the French Revolution and I am in dire need of an interesting topic.What i'm looking for is something
1. 3 answers
2. asked by Baphomet
3. 622 views
My instructor suggested that I simplify the essay, so I can easily get my point across. Meanwhile, the feedback received from my
1. 1 answer
2. asked by rose
3. 616 views
Just checking an answer...I was given Aluminum + Sulfur yields.. & I was to finish & balance & answer the questions. 2Al + 3S =>
1. 1 answer
2. asked by anna
3. 603 views
<b>‘It was Sparta, not Athens which won the war against Persia’. To what extent is this view of the Persian War correct?</b>
1. 1 answer
2. asked by TP
3. 602 views
Can someone solve this integral for me? My calculator just gives me a decimal approximation but I need an exact number. Thanks!
1. 5 answers
2. asked by Lin
3. 596 views
List 3 examples of Kennings found in Beowulf.
1. 1 answer
2. asked by Morgan
3. 594 views
12)It is summertime and two boys cannot wait for winter. One boy exerts a 70N horizontal force as he pushes his 58 kg friend
1. 3 answers
2. asked by Jon
3. 594 views
Helping my son with %. I can't remember how. Here is the question. The baseball team has played 35 games so far this season. Of
1. 3 answers
2. asked by shannon
3. 590 views
What would be a good title for this essay?Also, what is wrong about this essay? Essay: Animals have been used in medical
1. 2 answers
2. asked by Walker
3. 581 views
please check my answer thanksWhat benefit does an adult dog gain from being petted with long smooth strokes ? 1. The dog grows
1. 1 answer
2. asked by sarjh
3. 575 views
How do you find the domain of a function when the number is outside of the paranthesese. Example would bey=(square root of x)+3.
1. 1 answer
2. asked by Casey
3. 575 views
Thank you for your help, & for the website, makes for some interesting reading.
1. 0 answers
2. asked by TJ
3. 564 views
I have a few questions on my homework assignment. I've been sick and I have no idea what I'm doing.Question 1: Assume the hights
1. 0 answers
2. asked by Amanda
3. 560 views
Use the following information regarding the farm population(in millions of persons)from 1945 to 1990.Year 1945(24.3 millions of
1. 2 answers
2. asked by Gien
3. 560 views
please check my answer thanksWhat is one social characteristic that both wolves and humans share which may have helped the
1. 2 answers
2. asked by sarjh
3. 558 views
8)If an airplane is moving at a constant velocity of 400 m/s for 20 s, what is its acceleration during this period?0 m/s^2 b/c
1. 1 answer
2. asked by Jon
3. 555 views
What does he look like?He is heavy and tall. He looks like a heavy and tall man. What is he like? He is short and overweight. He
1. 1 answer
2. asked by John
3. 548 views
What are the important dates in the history of the cell theory?
1. 1 answer
2. asked by Pakkinee
3. 545 views
how would i work this outsari has 7/12 yards of material does she have more or less than 8 yards of cloths?
1. 1 answer
2. asked by angel
3. 536 views
http://www.google.com/search?q=immigration+in+1840-1920&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=
1. 0 answers
2. asked by Writeacher
3. 533 views
The diploid form in a plant's life cycle is called what?
1. 0 answers
2. asked by Mike
3. 531 views

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