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Questions Asked on March 2, 2013

If an 0.650 m aqueous solution freezes at –2.00 °C, what is the van't Hoff factor, i, of the solute? Kf values can be found
1. 1 answer
2. asked by Anonymous
3. 19,473 views
Imagine two solutions with the same concentration and the same boiling point.?Imagine two solutions with the same concentration
1. 2 answers
2. asked by Dee
3. 9,813 views
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s
1. 2 answers
2. asked by Morgan Parker
3. 8,915 views
Suppose that the 1.3 km span of the golden gate bridge had no expansion joints. Calculate how much longer the bridge would be if
1. 1 answer
2. asked by Joey
3. 4,944 views
Which of the following words is different from the others?A. Sell B. Trade C. Barter D. Bargain
1. 10 answers
2. asked by Derek
3. 4,706 views
Find the concentration of calcium in ppm in a 3.5g pill that contains 40.5mg of ca?Answer 1.16ppm Bob helps me
1. 4 answers
2. asked by Fai
3. 3,633 views
a banner requires 1 1/2 sections of plastic. How many banners can be made from 12 sections of plastics?A.7 B.8 C.9 D.15
1. 1 answer
2. asked by Derek
3. 2,525 views
one of the exterior angles of a triangle is 126 degree and the interior opposite angles are in the ratio 2:4. Find the angles of
1. 2 answers
2. asked by anchal
3. 2,427 views
How far apart are the foci of an ellipse with a major axis of 26 feet and a minor axis of 24 feet?
1. 4 answers
2. asked by lee
3. 2,389 views
An air-track cart of mass 0.10 is moving with a speed 1.2 to the right when it collides with a cart of mass 0.24 that is at
1. 1 answer
2. asked by Madison
3. 2,246 views
Skip designs tracks for amusement parks. For a new design the track will be ellipitical if the ellipse is placed on a large
1. 3 answers
2. asked by lee
3. 2,226 views
A solution is made by mixing 37.0 mL of ethanol, C2H6O, and 63.0 mL of water.?Assuming ideal behavior, what is the vapor
1. 3 answers
2. asked by Dee
3. 2,171 views
A space probe is carried by a rocket into outerspace where it continues to move on its own in a straight line. What keeps the
1. 2 answers
2. asked by Sally
3. 2,123 views
the international links long-distance phone company charges no monthly fee but charges 18 cents per minute for long-distance
1. 4 answers
2. asked by Larissa
3. 2,062 views
Find the length of the arc formed byx^2=9y^3 from point A to point B, where A=(0,0) and B=(81,9) Please help, I have no clue as
1. 1 answer
2. asked by Anonymous
3. 1,981 views
How many formula units are in 67.69 grams of salt?How many molecules are in 44.99 grams of water?
1. 1 answer
2. asked by Leigh Green
3. 1,882 views
find k if one of the lines given by kx^2+10xy+8y^2=0 is perpendicular to 2x-y=5
1. 2 answers
2. asked by karan
3. 1,793 views
If the point A(1,-2), B(2,3), C(-3,2), and D(-4,-3) are vertices parallelogram ABCD, then taking AB as the base , find the
1. 2 answers
2. asked by sana
3. 1,747 views
Find the number of each kind of object in the collectionMiranda has 24 CDs in her collection. Of those CDs, 10 are pop CDs. She
1. 2 answers
2. asked by Dee
3. 1,710 views
1)The Earth exerts an 710 N gravitational forceon a man. What force does the man exert on the Earth? Answer in units of N 2)If a
1. 3 answers
2. asked by Sally
3. 1,571 views
The preimage of square ABCD has its center at (8,-8) and has an area of 4 square units. The top side of the square is
1. 1 answer
2. asked by Knights
3. 1,530 views
Identify the nouns and verbs;Life is full of choices, so I must learn to make good ones.
1. 2 answers
2. asked by kitha
3. 1,528 views
If a Mack truck and Honda Civic have a headon collision, upon which vehicle is the impactforce greater and which vehicle
1. 1 answer
2. asked by Sally
3. 1,419 views
A parabolic microphone has a cross-section in the shape of a parabola. The microphone is placed at the focus of the parabola. If
1. 1 answer
2. asked by lee
3. 1,410 views
Propane reacts with oxygen in a combustion reaction. What volume of carbon dioxide gas is formed when 20 L of propane are
1. 1 answer
2. asked by john
3. 1,379 views
sorry to ask a second question so soon, but i'm just not getting this one.if f(x)= 3x lnx, then f'(x)=? i used f'(x)=3x(D lnx) +
1. 6 answers
2. asked by ken
3. 1,362 views
A package slides down a 135 m long ramp with no friction. If the package starts from rest at the top and is to have a speed no
1. 1 answer
2. asked by Anonymous
3. 1,332 views
Find the slope and the equation of the tangent line to the graph of the function f at the specified point.f(x)=-10/3x^2+6x+6;
1. 3 answers
2. asked by Kimberly
3. 1,288 views
A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2.(a) What mass, in grams, of calcium
1. 0 answers
2. asked by Freddy
3. 1,167 views
Let ABC be a right triangle with ACB =90, AC =6 , and BC =2. E is the midpoint of AC , and F is the midpoint of AB . If CF and
1. 1 answer
2. asked by Anonymous
3. 1,162 views
Write an equation for the translation of x^2+y^2=25, by 8 units left and 4 units down.Please help.
1. 2 answers
2. asked by lee
3. 1,161 views
Hypothesize how the pH of white vinegar would change if an ammonia solution was added to it a drop at a time. White vinegar has
1. 2 answers
2. asked by Roxana
3. 1,154 views
Find the number of each kind of object in the collection.Sue's Card Collection 8 packs of baseball cards 3 fewer packs of hockey
1. 3 answers
2. asked by Quan
3. 1,152 views
The composition of the 108 congress was 51 republican 48 democrats and 1 independent.a committee on aid to higher education is
1. 1 answer
2. asked by Marie
3. 1,148 views
Maria bicycles 6km/h faster than Praedup. In the same time it takes Praedup to bicycle 54km, Maria can bicycle 72km. How fast
1. 1 answer
2. asked by Sandi
3. 1,144 views
When 1 g of gasoline is burned in an engine, about 48 kJ of heat is produced. How much mass is lost in the process? Do you think
1. 1 answer
2. asked by jake
3. 1,143 views
You hit someone with a force of 197 N.How much force is exerted on you? Answer in units of N Is the answer 197 N
1. 3 answers
2. asked by Sally
3. 1,118 views
Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm.324 cm^3 108 cm^3 36 cm^3 152 cm^3 Is the
1. 4 answers
2. asked by Delilah
3. 1,087 views
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure
1. 2 answers
2. asked by Amee
3. 1,063 views
for a lab it says prepare a 300 ml of .2% sodium bicarbonate solution. I am trying to find how many grams of NaHCO3 i need. so i
1. 2 answers
2. asked by Sarah
3. 1,026 views
X and Y are two capacitors(parallel plate) connected in series to a 12V supply.X has air between the plates and its capacitance
1. 2 answers
2. asked by Abhishek
3. 1,025 views
Would outdoor locations in countries such as Singapore with the highest temperatures also have the highest relative humidities?
1. 0 answers
2. asked by Becky
3. 997 views
I was given extra credit to find who Le Châtelier's High School Principal was.Not his PrincipLE, but his PrincipAL. My
1. 2 answers
2. asked by Enrico
3. 995 views
what is the volume of water displaced for 1.1 of pure gold.
1. 1 answer
2. asked by Era
3. 982 views
A conic section has the equation x^2+y^2+12x+8y=48. Determine the following; type of conic, domain and range, axes of symmetry,
1. 0 answers
2. asked by lee
3. 974 views
When 3.75 g of a nonelectrolyte solute is dissolved in 405 mL of water at 25 °C, the resulting solution exerts an osmotic
1. 1 answer
2. asked by Anonymous
3. 952 views
Integral of 10 / (5x^2 - 2x^3) Do not determine the numerical values of the coefficients.Just wanted to know why when I write
1. 3 answers
2. asked by Daniel
3. 932 views
train car with mass m1 = 521 kg is moving to the right with a speed of v1 = 7.9 m/s and collides with a second train car. The
1. 1 answer
2. asked by John
3. 926 views
DIAGRAMS MUST BE DRAWNGiven the standard normal distribution, determine:Prob Z greater than 1.50 Prob Z between1.06 and 1.96
1. 1 answer
2. asked by Sue
3. 919 views
Why did Julius Caesar lose power?
1. 1 answer
2. asked by Gregory
3. 899 views
What are two practical applications for communications research?
1. 1 answer
2. asked by Anita
3. 886 views
Suppose you are stopped for a traffic light, and an ambulance approaches you from behind with a speed of 19.0 m/s. The siren on
1. 0 answers
2. asked by Tessa
3. 880 views
find the monthly payment fot the loan. $ 500 loan for 12 months at 13%
1. 2 answers
2. asked by Andrew
3. 874 views
what is the volume occupied by a mixture of 25.7 g of NO2 and 13.9g of SO2 at STP
1. 1 answer
2. asked by Anonymous
3. 873 views
Please, Would someone check my answers??? Thanks.7. The organizing function includes all but one of the following activities:
1. 3 answers
2. asked by ashley
3. 859 views
Three forces act concurrently on a point P as shown below. Which vector represents the direction of the resultant force on point
1. 1 answer
2. asked by john
3. 843 views
Write a console-based program that accepts a user's message and determines whether it is short enough for a social networking
1. 4 answers
2. asked by Jackie
3. 834 views
Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.020000 cm thick
1. 0 answers
2. asked by jonh
3. 830 views
Adele Weiss manages the campus flower shop. Flowers must be ordered three days in advance from her supplier in Mexico. Advance
1. 1 answer
2. asked by Anonymous
3. 785 views
Glutamic acid is triprotic amino acid with pKa values of 2.23, 4.42, and 9.95. Youare given a 0.100 M solution of it in its
1. 1 answer
2. asked by Angelyka
3. 771 views
Which parts of the Holy Roman Empire remained predominantly Protestant?
1. 3 answers
2. asked by Julie
3. 745 views
do you guys have the penn foster resource file graded project ? if you do , can you guys help me please ?
1. 2 answers
2. asked by Denise
3. 735 views
Muna and Rita had 360 seashells. Muna gave 4/7 of her seashells to Rita. In return, Rita gave 2/5 of her total number of
1. 0 answers
2. asked by Ashley
3. 727 views
An investor invested a total of $3,400 in two mutual funds. One fund earned 8% profit while the other earned a 3% profit. If the
1. 1 answer
2. asked by Anonymous
3. 726 views
in a set of number rods,there is one rod of length 10,2 rods of length 9,3 of length 8,and so on.If all these rods were laid end
1. 1 answer
2. asked by sarah
3. 723 views
in a wire AB of uniform cross section in which a potential gradient of 0.1 V/m exist.If the balancing point is foung to be 180
1. 0 answers
2. asked by Abhishek
3. 722 views
Using pseudocode, write a program on how you turn a corner in an automobile. Note that there is a stop sign in the intersection.
1. 0 answers
2. asked by kim
3. 721 views
∫ tan^2 x sec^3 x dxIf the power of the secant n is odd, and the power of the tangent m is even, then the tangent is expressed
1. 1 answer
2. asked by Sarah
3. 714 views
If Kf = 1.86C/m, how many grams of calcium chloride must be added to 1.0L of water (assume a density of 1.0 g/mL) to lower the
1. 7 answers
2. asked by Dee
3. 708 views
The average power output of a human heart is 1.3 3 Watts.You had to pay for this energy at Wis consin Energy’s rate of
1. 1 answer
2. asked by Meder
3. 706 views
Use the second derivative to determine the point of inflection for y = x3 – x2 – 8x + 12. ????
1. 1 answer
2. asked by tim2222
3. 681 views
I need help solving this question, I have no idea what I'm supposed to do.What is the minimum pressure in kPa that must be
1. 1 answer
2. asked by Student
3. 678 views
Distinguish between breathing and respiration , i wrote:Breathing is the process of taking in oxygen and eliminating carbon
1. 1 answer
2. asked by Heleny
3. 678 views
Could someone please explain how you get this answer???A skier with a mass of 60.0 kg pushes off with a horizontal speed of 3.0
1. 1 answer
2. asked by Demere
3. 664 views
are there any figurative language in the book Witch hunt the mysteries of salem?
1. 1 answer
2. asked by Mimi
3. 661 views
1. What is ZX applied to |0> ?2. What is ZX applied to H|0> ? Answer in form of: a|0> + b|1>
1. 0 answers
2. asked by dydx2013
3. 655 views
if the points A(-1,2) , B(2,3) , C(-3,2) and D(-4,-3) are the vertices of parallelogram ABCD, then taking AB as the base , find
1. 1 answer
2. asked by roopal
3. 655 views
How to convert centimeters into grams
1. 2 answers
2. asked by Anonymous
3. 655 views
A 80.0 Hz generator with an rms voltage of 150 V is connected in series to a 3.20 k ohm resistor and a 3.50 micro farad
1. 2 answers
2. asked by Mima
3. 647 views
Suppose that a ball has a rebound percentage of 75 and the ball is dropped from a height of 5ft onto the concrete below. Make a
1. 1 answer
2. asked by Lola
3. 642 views
2. (TCO 5) A company produces electronic equipments claims that 98% of their products never need any kind of maintenance. We
1. 1 answer
2. asked by JAR
3. 642 views
4. Given the irrational number .14147…. choose an inequality which approximates to the 4th decimal place.a) .14 < x <.15 b)
1. 2 answers
2. asked by anonymous
3. 638 views
Find the number of each kind of object in the collectionCurt has 12 models in all. Three of the models are airplanes. Curt has 5
1. 1 answer
2. asked by TJ
3. 626 views
the coefficient of friction between a block of weight 15N and a horizontal board on which it is resting is 3.0find the
1. 1 answer
2. asked by jane
3. 625 views
Classify the finacial problem. Assume a 7% interest rate compounded annually. Find the value of a $ 1,000 certificate in 4
1. 1 answer
2. asked by Andrew
3. 620 views
Answer these questions:1. What is s third of £18? 2. What is two thirds of £33? 3. What is three quarters of £42? 4 What is a
1. 3 answers
2. asked by hind
3. 619 views
a mass of 0.2kg is attached to a spring of negligible mass. if the mass executes simple harmonic motion with a period of 0.5s,
1. 0 answers
2. asked by naynay
3. 587 views
Calculate the pH of each of the following strong acid solutions.0.697 g of HClO3 in 2.97 L of solution. so i convenrted grams to
1. 2 answers
2. asked by hannah
3. 585 views
write as a decimalseven and eighty-seven hundreths
1. 1 answer
2. asked by Sharon
3. 581 views
Calculate the energy of a photon of frequency 35.0 MHz (MHz is a mega hertz or 1 x 106Hz).
1. 2 answers
2. asked by Laura
3. 581 views
A photon with a wavelength (λ) of 3.091 x 10–7 m strikes an atom of hydrogen. Determine the velocity (in meters/second) of an
1. 0 answers
2. asked by Anonymous
3. 580 views
You hit someone with a force of 197 N.How much force is exerted on you? Answer in units of N
1. 1 answer
2. asked by Sally
3. 578 views
Find the slope and the equation of the tangent line to the graph of the function f at the specified point.f(x)=-10/3x^2+6x+6;
1. 3 answers
2. asked by Kimberly
3. 575 views
A distribution of weights is symmetric about its median. The lower quartile of the weights is 90 pounds and the median is 120
1. 4 answers
2. asked by ellas
3. 571 views
This is a standard deviation contest. You have a six sided die with the numbers 1 to 6 written on the faces.a)In order to have
1. 1 answer
2. asked by Sue
3. 571 views
Find the maximum value of y/x over all real numbers x and y that satisfy (x-3)^2+(y-3)^2 = 6.It is a circle, but how do we even
1. 2 answers
2. asked by Knights
3. 566 views
A particle of mass 4 kg is attached to one end of an inelastic string and a particle of mass 2 kg is attached to the other end
1. 0 answers
2. asked by Jess
3. 565 views
What did Julius Caesar do after taking over Rome?
1. 1 answer
2. asked by Gregory
3. 563 views
Determine the minimum electric potential difference (in volts) that must be applied to accelerate an α-particle so that on
1. 1 answer
2. asked by Anonymous
3. 560 views
If the point A(1,-2), B(2,3), C(-3,2), and D(-4,-3) are vertices parallelogram ABCD, then taking AB as the base , find the
1. 1 answer
2. asked by Anonymous
3. 556 views

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