A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine the delta H (in units...
November 10, 2010
In a classic model, the electron of a hydrogen atom circles the proton at a radius of 0.0529·10−9m when it is in the n=1 state. What is its electric potential energy?
November 3, 2010
A baker used 16 pounds of flour and 12 cups of sugar to make several batches of cookies. the baker used the same amount of flour and sugar in each batch of cookies. what is the number of batches the baker could have made with his flour and sugar? this is all the question.... i...
October 11, 2010
A baker used 16 pounds of flour and 12 cups of sugar to make several batches of cookies. the baker used the same amount of flour and sugar in each batch of cookie. what is the number of batches the baker could have made with his flour and sugar
October 11, 2010
I'm so confused on how to find mu. A 68 kg box slides down a 27 degree ramp with an acceleration of 3.10 m/s squared. The acceleration due to gravity is 9.81 m/s squared. It wants me to find mu between the box and the ramp but I don't even know where to start. Can you ...
October 10, 2010
The state legislature where Brighton was governor passed a statute giving him the power to nullify the Bill of Rights of the U.S. Constitution. Brighton exercised this power by eliminating the First Amendment. He then shut down all state newspapers that opposed his reelection...
July 6, 2010
Ruth carelessly parks her car on a steep hill, leaving the car in neutral and failing to engage the parking brake. The car roles down the hill, knocking down an electric line. The sparks from the broken line ignites a grass fire. The fire spreads until it reaches a barn one ...
July 6, 2010
This is a long one, but it is a no solve. Youʼre cooking four pancakes, one at a time, using a stove-top timer to judge the time Ät needed to cook each side (i.e. half) of each circular cake (radius = r). The timer emits a ding, a sound whose pressure ...
February 21, 2010
1. Ned reads textbooks (y) and harlequin romance novels (x). He sends about $250 per quarter on books. His demand for textbooks can be written m 2py and his demand for harlequin romance novels is m 2px . (a) Textbooks cost $30 while romance novels cost $10. Draw a graph ...
February 2, 2010
What about if I put down a trip to the grocery store instead? That way, both reading and math would be covered as well. They would need todo a shopping list and read the sins in the store. They would also need to work with money.
September 26, 2009
I need to make lesson plans for students with mental retardation. Can you please tell me what you think of my ideas. For Pre-K work on gross motor skills, play simon says, use songs that make the child use their motor skills (if you're happy and you know it, clap your ...
September 26, 2009
Final Project: Health Care Roles in Communication Knowing how to communicate in all health care roles is important. There are many areas of health care, so a diverse understanding of each will not only help you as a health care employee, but will also help the patients you ...
July 19, 2009
Anhydrous conditions are vital for a successful Grignard synthesis. To demonstrate this point calculate the mass of the water it would take to destroy the phenylmagnesium bromide you will synthesize. What is he volume of this amount of water? -How exactly do you do this?
March 2, 2009
3rd Grade Math
Partial sum methods 100s 10s 1s. New mother needs help with this. Daughter did not bring home refference book for me to understand her new way of math. I need to understand her so she is not frustrated 245 +92 she talks about going down and different lines. ?????
October 8, 2008
To be or not to be speech
What literary devices are used in "To be or not to be that is the question" from Hamlet? I have to analyze the speech and I would like to know if my interpretation is correct. Hamlet is talking to himself and he is debating whether he wants to live or not because ...
January 11, 2008
a marked price on an mp3 player is $15000.Calculate the price of the item after a 12% discount given. Marked price on mp3 player =$15000 Discount % =12% discount =12/100 multiply by $ 15000 $180 new price=$15000-$180 =$14820 answer:$14820
January 7, 2008
If you wish to balance complementary colors so that they'll appear static and harmonious, it's important to ? http://www.applepainter.com/Chap05/ and http://www.tigercolor.com/color-lab/color-theory/color-theory-intro.htm These two sites should help you come to your ...
May 25, 2007
Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored (forward, reverse, or neither) H2(g)+Cl2(g)<=>2HCl(g) +184 kJ A)addition of Cl2 B)removal of HCl C)increased pressure D)decreased temperature E)...
May 23, 2007
What is the unit rate? A racing car travels 180 miles in 1.5 hours. 5 i need it as a fraction like: 180mi/1.5 hrs thats not the unit rate i think it is The units here will be miles per hour. (Another valid yet rare answer is hours per mile.)
January 25, 2007
Describe how you can find the relative desities o 4 different liquids. You can let one float on the others, if they are not miscible. The less dense will be on top of the heavier dense. See experiment 2 on this site: http://www.hometrainingtools.com/articles/liquid-density-...
September 5, 2006
what do we call the numbers that cannot be arranged into 2-row arrays? I think this is the 3rd time I've seen this question posed. I'm not aware of any special name for arrays with two rows, so I'd sure be interested to see what the quesioner has in mind here. As ...
August 30, 2006
Yep another Axia Student in ETH125. I agree Carrie it is like a little chat room and I think it is cool that we have advice from previous students. I wold call this a study group.
July 20, 2006