Thursday

November 27, 2014

November 27, 2014

Total # Posts: 1,118

**Chemistry**

The molar mass of a non-dissociated, non-volatile compound is to be determined by dissolving 5.00 g of the compound into 50.0 g of benzene. The freezing point of benzene was lowered by 2.5 degrees C. The freezing point depression constant (Kf) for benzene is 5.0 degree C/molal...
*January 31, 2007*

**Chemistry**

Two Flasks containing the same inert gas are at the same temperature and pressure of 800 mmHg. One flask has volume of 1.0 L and the other, a volume of 2.0 L. Enough volatile liquid is injected into each of the flasks to allow phase equilibrium to be established. No leakage ...
*January 31, 2007*

**Chemistry**

Two flasks containing the same inert gas are at the same temperature and pressure of 800. mm Hg. One flask is injected into each of the flasks to allow phase equilibrium to be established. No leakage occurs. If the pressure in the 1.0 L flask is 900 mm Hg, what is the pressure...
*January 31, 2007*

**Chemistry**

In my problem i need to find the mass of Ag in AgNO3. I have 3.489g of AgNO3. Help please! Determine the percentage composition from the formula. PercentAg= atomicmassAg/molmassAgNO3 Then, mass Ag= 3.489 * decimal percent above.
*January 28, 2007*

**Econ**

The demand for widgets (QX) is given by the following equation: QX = 425-PX¡V1.5PW¡V1.25PG+0.8PY+0.1 M where QX= number of units of widgets sold per week PX = the price of widgets = 400 PW = the price of woozles = 50 PG = the price of gadgets = 80 PY = the price of...
*January 25, 2007*

**Hum130**

Thank you also. I am an Axia student in need of help with the same questions. I found your response to be the most helpful. I hope by now that you have beat that cold.
*January 7, 2007*

**Statistics**

The Wechsler Adult Intelligence Scale (WAIS) is a common "IQ test" for adults. The distribution of WAIS scores for persons over 16 yrs of age is approximately Normal with mean (100) and Standard Deviation 15, (a) Whatis the probability that a random chosen individual...
*December 5, 2006*

**math**

a poster is 25cm taller than it is wide. it is mounted on a piece of cardboard so that there is a 5cm border on all sides. if the area of the border alone 1350cm^2, what are the dimensions of the poster? It is almost a must to draw a diagram but I can't do that on the ...
*November 29, 2006*

**ecology**

define Autotroph- Heterotroph- Herbivore- Carnivore- Omnivore- Decomposer- Scavenger- Bacteria- use an online dictionary
*November 19, 2006*

**outback question**

what are alot of the animals names in the outback. i need this question answered because i cant find it in textbooks or internet. http://www.google.com/search?as_q=&num=10&hl=en&btnG=Google+Search&as_epq=australian+wildlife&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&...
*November 19, 2006*

**Economics**

Hey just needed some pointers on the following questions. True or False? Explain.. 1. As long as the firm has to pay for an input, it would be wasteful not to use all input services purchased? 2. A profit-maximising competitive firm will never produce in the region where ...
*October 11, 2006*

**word problem!!!!!!!**

three people decide to share the cost of a yacht. by bringing in an additional partner, they can reduce the cost for each by $4000. what is the total cost of the yacht? $16,000 okay how did you get that. easy i multiplied 4,000 multiplied by 4 ... it says that the cost for ...
*September 12, 2006*

**Physics**

A car traveling 56 km/h is 24 m from a barrier when the driver slams on the brakes. The car hits the barrier 2s later a) what is the car's constant deceleration before the impact? b)How fast is the car traveling at impact? I don't get the impact parts... I think you ...
*September 12, 2006*

**Physics**

Sitting on a horizontal track is a mass of 10kg. One end of the track is raised untill the mass just begins to slip. If the coeffieient of static friction is .4 what is the minimum angle at which the mass begins to slip? The component of force down the slope: mgSinTheta THe ...
*August 22, 2006*

**math**

If you paid 2,000 a month or 24,000 a year on 200,000 dollars at 5.00% what formula would you use to calculate the interest paid? Thanks The first year you'd pay $10,000 (.05 x $200,000) in interest. The remaining $14,000 of your payment would be applied to the principle. ...
*August 3, 2006*

**math**

Say i have a mortgage of 200,000. One bank offers 5.oo%. The other offers 5.23% How do i calculate the interest paid over say 5 yrs. thanks You haven't given us enough information to calculate the interest. You need to know how much you're paying each year on your ...
*August 3, 2006*

**Maths**

Calculate the output of a tidal barrage in mega watts if the basin is 30km2 and the tidal range is 6m. E = PA R^2g/2 P = 1020Kg m-3 g = 9.81m-2 R = 6m A = 30*10^6 The answer is 5.4*10^12j butwhat is this in mega watts Thank you jason If you use an area of A = 30*10^6 m^2, in ...
*July 9, 2006*

**free-fall graph**

for a object in free-fall what will the acceleration (cm/sec2) on the y axis versus time(sec) on the x axis graph look like? When there is no frictional air resistance, the acceleration is constant: 9.8 meters per second per second. Air resistance causes a gradual reduction of...
*June 12, 2006*

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