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Questions Asked on November 23, 2010

calculate the weight of crystal formed on cooling 80 gm of saturated solution from 60 degree Celsius to 30 degree Celsius.
1. 2 answers
2. asked by hey
3. 3,419 views
A horizontal force of 25 newtons pushes a box a distance of 30 meters across the floor. How much work is done by the force?
1. 1 answer
2. asked by stephanie
3. 839 views
If the reaction Fe2N(s) + 3/2H2(g) -> 2Fe(s) +NH3(g) comes to equilibrium at a total pressure of 1 bar, analysis of the gas
1. 2 answers
2. asked by Katie
3. 2,271 views
Consider the polynomial P(x), shown in standard form and in factored form.p(x)= -(1)/(5)x^(3)+(1)/(5)x^(2)+(17)/(5)x+3=
1. 1 answer
2. asked by Wizard
3. 610 views
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid,
1. 1 answer
2. asked by Patrick
3. 633 views
Hi! Thank you very much for your help---I'm not sure what the answer to this is; how do I solve? Find antiderivative of
1. 1 answer
2. asked by APpreciative student
3. 681 views
Consider the polynomial f(x) = 3x3 – 2x2 – 7x – 2.(a) By using the Rational Zero Theorem, list all possible rational zeros
1. 1 answer
2. asked by Alg help
3. 1,459 views
Please explain with complete step by step instructions.#8)One type of lawn fertilizer consists of a mixture of nitrogen,
1. 2 answers
2. asked by Lee
3. 570 views
If the system below is at equilibrium in a closed vessel and a small amount of nitrous acid [HNO2(§¤)] is added, what would be
1. 1 answer
2. asked by jackie
3. 1,154 views
T=thickness, V=volume, A=area, m=mass D=densityV=m/D Suppose T=V/A is a method used to find the thickness. How may this method
1. 1 answer
2. asked by John
3. 449 views
an angle's measure is twice the measure of its complement. The larger angle is how many degrees greater then the smaller angle?
1. 2 answers
2. asked by Janelle
3. 900 views
An aluminum cylinder with a density of 2.70 g/cm3 has a volume of 3.8 ¡¿ 10-5 m3. If the cylinder is suspended from a scale
1. 1 answer
2. asked by David
3. 560 views
How do i solve this half reaction with Mg(OH)2(s) --> Mg(s)?Complete and balance the displayed half reaction in basic aqueous
1. 1 answer
2. asked by Confused
3. 805 views
pass the journal entries for the following(1) discountd bill of rs.1000 at1% by bank (2) interest allowed by bank rs.5000
1. 0 answers
2. asked by mrudula
3. 354 views
A cylinder contains 3.5 L of oxygen at 350 K and 2.5 atm . The gas is heated, causing a piston in the cylinder to move outward.
1. 3 answers
2. asked by Isabel-A
3. 2,046 views
A battery of three cells in series each of emf 2v and internal 0.5 ohms is connected to 2ohms resistor in series with a parallel
1. 9 answers
2. asked by Emmanuel
3. 4,264 views
when a solution prepared by dissolving 4.00g of an unknown monoprotic acid in 1.00L of water is titrated with 0.600M NaOH,
1. 1 answer
2. asked by Ksolo
3. 1,161 views
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl is ?.
1. 2 answers
2. asked by ben
3. 1,841 views
Take 90 cm as the two sides of a triangle (Line B and C), with an angle of 32 degrees (Degree 'a'). Use the Law of Cosine to
1. 2 answers
2. asked by Anonymous
3. 443 views
Several years ago, a brewing company led a charge of microbreweries in an attack on the established brewers' domestic beers.
1. 1 answer
2. asked by Need Help
3. 471 views
In 2005 Russell acquired and interest iin a partnership in which he is not a material participant. The partnership was
1. 0 answers
2. asked by Tonia
3. 512 views
A 3670 lb car going around an unbanked curve at a constant speed of 25 mph begins to slide (ìs=0.55 and ìk=0.45). What is the
1. 2 answers
2. asked by sandhu
3. 536 views
i need 10 interrogative sentences in spanish talking about being on vacation.
1. 4 answers
2. asked by l
3. 696 views
A very strong girl runs 200 miles east for several hours. After a brief rest she runs another 100 miles north. She stops for the
1. 1 answer
2. asked by Kevin
3. 827 views
An object has a length of 5.0 cm, a height of 3.0 cm and a width of 15.0 cm. It has a mass of 24 grams. What is its density?
1. 1 answer
2. asked by t.o
3. 465 views
A ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed
1. 2 answers
2. asked by james
3. 535 views
How many joules of energy are necessary to melt 46.0 grams of ice?
1. 1 answer
2. asked by Cristine
3. 734 views
In "It Can't Be Helped," why does Mama destroy her dishes?a)She does not like the pattern on the dishes, which are chipped
1. 7 answers
2. asked by Harry
3. 1,921 views
A moving 2.8 kg block collides with a horizontal spring whose spring constant is 215 N/m (see figure). The block compresses the
1. 5 answers
2. asked by help
3. 766 views
I posted some Physics questions yesterday, but no one got the chance to look at them, so can u please go to 2nd page and look
1. 2 answers
2. asked by Anabelle
3. 532 views
pls. verify:4x^3y^-2 / 2x^-1y^4 = 2x^4y^-6 [w^1 / w^-3]^-4 = 1/w^16
1. 1 answer
2. asked by Dexter
3. 324 views
In an atom whose core contains 16 neutrons possess a total electrical charge1. What is the atomic number of the atom? 2.What is
1. 2 answers
2. asked by Ciara
3. 475 views
Calculate the value of [H3O+] in a 0.01 M HOBr solution. Ka = 2.5E-9I'm having a problem with just writing the equilibrium
1. 2 answers
2. asked by Audrey
3. 1,179 views
An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet
1. 2 answers
2. asked by kaitlyn
3. 1,282 views
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an
1. 2 answers
2. asked by michelle
3. 1,416 views
A 33300 lb (earth weight) rocket in outer space has two constant forces acting upon it,F1 = (-166i + 392j) lb and F2 = (50i +
1. 0 answers
2. asked by sandhu
3. 502 views
what is the pH of a solution that is .15 M in HOCl and .25 M NaOCl after .05 mol HCl/L has been bubbled into the solution?this
1. 1 answer
2. asked by Audrey
3. 1,074 views
Can you figure out this message?ZASMEZASIXP IP JUT One clue the first word starts with an M
1. 2 answers
2. asked by Linda
3. 358 views
A(g)+ B(g) <---> C(g) + D(g)Kc= 144. If .4 mol of A and B are placed in a 2 Liter container, what will be the concentration of C
1. 1 answer
2. asked by Audrey
3. 405 views
A 11.0 g bullet is fired horizontally into a 108 g wooden block that is initially at rest on a frictionless horizontal surface
1. 0 answers
2. asked by please help
3. 725 views
13.98mL of 2.902M HCl are reacted with 15mL of 3.198M NaOH. Use the molar heat of neutralization to determine the kJ of heat
1. 3 answers
2. asked by serena
3. 460 views
Question related to a bicycle dynamo and a wheel.Why a current flows through the bicycle lamp when the wheel of the bicycle
1. 1 answer
2. asked by Billiez
3. 654 views
A string of length l carries a small pulley C from which is suspended a load W. The string hangs between two vertical walls
1. 1 answer
2. asked by ACD
3. 1,204 views
when 12.76mL of HCl of unknown concentration (but less than the base) are reacted with 15mL of 3.254M NaOH, 1.68kJ of heat are
1. 5 answers
2. asked by serena
3. 1,093 views
a balloon is filled with .50 moles out of gas at room temp and normal room pressure, the balloon volume would be 11.2L. if you
1. 1 answer
2. asked by Kat
3. 631 views
A(g)+ B(g) <---> C(g) + D(g)Kc= 144. If .4 mol of A and B are placed in a 2 Liter container, what will be the concentration of C
1. 2 answers
2. asked by Audrey
3. 467 views
The period of a satellite is the primary way that the mass of planets is determined. The equation used for this calculation uses
1. 0 answers
2. asked by ck
3. 533 views
a 50.0 ml sample of a 15% (m/v) solution of H2SO4 is added to water to give a final volume of 250.0 ml. What would the final
1. 2 answers
2. asked by Kat
3. 668 views
A 2.606 kg block is on a horizontal surface with ìk = 0.160, and is in contact with a lightweight spring with a spring constant
1. 2 answers
2. asked by help
3. 668 views
What is the concentration (in M) of hydroxide ions in a solution at 25°C with pH = 4.282?
1. 1 answer
2. asked by ben
3. 1,064 views
A 19.6 g sample of ice at -10.0°C is mixed with 100.0 g of water at 75.4°C. Calculate the final temperature of the mixture
1. 1 answer
2. asked by Anonymous
3. 681 views
The speed of longitudinal waves, called P waves, is 7274.0 m/s. Transverse waves, called S waves, travel at a slower 3803.0 m/s.
1. 1 answer
2. asked by Pete
3. 595 views
HiWhat is the center of mass of the following object measured from the center of the sphere?: a sphere of radius R and mass m2
1. 1 answer
2. asked by student2010
3. 540 views
The pH of a 0.55-M aqueous solution of hypobromous acid, HBrO, at 25°C is 4.48. What is the value of Ka for HBrO?how do you
1. 2 answers
2. asked by jessica
3. 6,201 views
What would be the reaction of a reader if the topic sentence in an essay did not coincide with the supporting points
1. 1 answer
2. asked by mary
3. 486 views
· Why is time such an important factor in financial matters? How does the frequency of interest compounding, regardless of the
1. 0 answers
2. asked by Anonymous
3. 433 views
what is the answer to x-5w=
1. 3 answers
2. asked by serena
3. 304 views
X rays of wavelength 2.63 were used to analyze a crystal. The angle of first-order diffraction (n = 1 in the Bragg equation) was
1. 3 answers
2. asked by kay
3. 1,609 views
Can you please check these alternatives I'm not sure of? Thank you very much.1) The growing anticlericalism in 14th-century
1. 1 answer
2. asked by Franco
3. 545 views
The amont financed is equal to the cash price _________ down payment.A. Multiplied by B. Plus the C. less the D. Divided by
1. 1 answer
2. asked by Math Question
3. 430 views
the force required to accelerate a mass of 10.0kg at 4.00m/s^2 is
1. 1 answer
2. asked by John
3. 363 views
From the perspective of a healthcare administrator of any type of healthcare organization, who oversees human resource benefits,
1. 0 answers
2. asked by Delo
3. 958 views
The acid-dissociation constant, Ka, for gallic acid is 4.57 × 10-3. What is the base-dissociation constant, Kb, for gallate
1. 1 answer
2. asked by jessica
3. 1,582 views
Which of the following statements regarding TERM insurance is true ?A. It provides temporary protection B. It builds up cash
1. 0 answers
2. asked by Insurance Problem
3. 982 views
Find the percent. Round to the nearest whole percent.159 people in favor out of 350 people surveyed.
1. 1 answer
2. asked by nikkie
3. 911 views
On a map, the length of a nature-center trail is 8.2 centimeters. If the scale is 3 centimeters to 24 kilometers, what is the
1. 2 answers
2. asked by Barbara
3. 510 views
A 20g plastic ball is moving to the left at 30 m/s. How much work must be done th cause the ball to move to the right at 30 m/s?
1. 2 answers
2. asked by nathan
3. 4,650 views
factor.3x+x^2-10
1. 1 answer
2. asked by mike
3. 274 views
Rationalize the denominator. Assume all variables represent positive numbers?- 245x3 y5
1. 1 answer
2. asked by Rachel
3. 726 views
identify at least four key milestones in the development of cognitive psychology as a discipline
1. 2 answers
2. asked by sam
3. 1,180 views
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl isi solved it but my answer is wrong. the
1. 2 answers
2. asked by ben
3. 5,065 views
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid,
1. 1 answer
2. asked by Mike
3. 626 views
Write an algerbraic expression to describe the pattern rule for the date in this table of valures.Term# Value 1 6 2 11 3 18 4 27
1. 1 answer
2. asked by VANESSA
3. 465 views
What is a straight line method?
1. 3 answers
2. asked by Mare
3. 488 views
A sample of 25.00 mL of 0.100 M HNO2(in a flask) is titrated with 0.150 M of NaOH solution at 25 degrees.1) calculate the
1. 2 answers
2. asked by Jefferson
3. 693 views
Ok, I really need to know how to work problems like these so could someone please show me how to set it up?! Given this data:1.
1. 1 answer
2. asked by lavonne
3. 592 views
What mass of Zn can be dissolved by 558 mL of 3.01M HCl?
1. 4 answers
2. asked by Brittany
3. 392 views
Women in the last fifty years:A. have had fewer legal rights than men. B. have entered the workforce in large numbers and have
1. 3 answers
2. asked by sra
3. 472 views
A gas has a volume of 4.00 at 0. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to
1. 1 answer
2. asked by Brittany
3. 799 views
Calculate K at 25°C for the reactions given below.(a) Zn(s) + 2Ag+(aq) Zn2+(aq) + 2Ag(s) (b) 2H2O2 2 H2O + O2 Given: H2O2 + 2
1. 0 answers
2. asked by Lauren
3. 548 views
A rock tied to a string is swung around in a circle with a radius of 10 ft. The centripetal acceleration is 16.9 ft/sec2.
1. 1 answer
2. asked by drake
3. 803 views
The half -life of carbon-14 is 5,730 years.how much of an initial amount of this substance would remain after 17,190 years(3
1. 1 answer
2. asked by Eileen
3. 611 views
What concentration of aqueous CaCl2 solution freezes at -10.2ºC?
1. 1 answer
2. asked by Anonymous
3. 422 views
14.how would you describe this set of data? In other words, how would you describe the “average” score (mean, median or mode
1. 1 answer
2. asked by Lola
3. 528 views
jessica has 24 shirts .1/6 are red.1/3 are yellow.4/12 are green. the rest are blue.how many are blue
1. 2 answers
2. asked by liana
3. 626 views
In health care, there are various physician-centered communication attributes that occur during the patient-provider
1. 2 answers
2. asked by Whitney
3. 700 views
a turntable is designed to acquire an angular velocity of 38.6 rev/s in 0.5 s, starting from rest. Find the average angular
1. 1 answer
2. asked by Anonymous
3. 479 views
Tutors: thanks for your help.Is this how this problem is solved ? A sample of Xenon gas at 20degrees celcius and 0.570atm is
1. 1 answer
2. asked by Cliff
3. 628 views
what is the cation and anion of Na3PO4?thanks
1. 3 answers
2. asked by rebekah
3. 8,576 views
i need help on othelloi canèt figure out how does Iago dishonor Cassion in Act 2 Scene 3. this is my guess: he gets him drunk
1. 1 answer
2. asked by NeedHELP
3. 442 views
1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g)If you start with: 5.0 x 10^4 hydrazine (N2H4) "in the tank": 1) How many moles of
1. 4 answers
2. asked by Lauren K.
3. 606 views
20.2 mL of 0.234 M FeCl3 is added to 42.5 mL of 0.453 M NaOH. Iron(III) hydroxide precipitates. NaCl remains in aqueous
1. 1 answer
2. asked by Lilly
3. 772 views
a 3.5 kg block is accelerated from rest by a compressed spring of spring constant 640 N/m. The block leaves the spring at the
1. 4 answers
2. asked by help
3. 6,456 views
You have just built a swimming pool measuring 12 feet width by 28 feet length and 12.5 feet depth. how much water will it take
1. 1 answer
2. asked by Carolann
3. 621 views
I need major help im not understanding this at all:Complete and balance each of the following equations for acid-base reactions.
1. 1 answer
2. asked by hannah
3. 808 views
the hypotenuse of a triangle is 24 ft. long. the lenght of one leg is 6ft. more tha the other. Find the lengths of the legs.
1. 1 answer
2. asked by Anonymous
3. 700 views
Utilization of a SWOT Analysis is a common method of comparing Internal and External factors that impact an organization. What
1. 1 answer
2. asked by Christi
3. 499 views
4. A customer wants to make a teepee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the
1. 1 answer
2. asked by Wanda
3. 478 views
For propanoic acid (HC3H5O2, Ka = 1.3 10-5), determine the concentration of all species present, the pH, and the percent
1. 2 answers
2. asked by AMANDIP
3. 4,647 views
how do u find the percent yield of 4.0g of acetanilide AND 31.12G OF 4-bromoacetanilide.calculate the percent yield of
1. 1 answer
2. asked by georgie
3. 474 views

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