Sunday
February 14, 2016

Posts by Kristina

Total # Posts: 212

social studies
I need some examples of cruelty to creation for a school project
November 8, 2007

Thermodynamics
The molar enthalpy of formation of water vapor is -241.82 kJ/mol at 298 K. Calculate the molar enthalpies of formation of water vapor and of liquid water at 100 C and at -0.1 C (four values).
October 3, 2007

CHEM
Calculate the molar solubility of gold(I) chloride (Ksp= 2.0 x 10^-13) in .10 M NaCN. The complex ion formed is [Au(CN)2]- with Kf= 2.0 x 10^38. Ignore any other competing equilibrium systems. I'm having trouble writing an equation to start off with. First, I had written ...
April 15, 2007

Chemistry
Consider the reaction Zn(OH)2(s) + 2CN-(aq) <--> Zn(CN)2(s) + 2OH-(aq) a) Calculate K for the reaction. (Ksp Zn(CN)2= 8.0 x 10^-12) b) Will Zn(CN)2 precipitate if NaCN is added to a saturated Zn(OH)2 solution? I tried splitting this into two equations: Zn(OH)2(s)<--&...
April 11, 2007

Physics
By how much does the H20 pressure exceed atmospheric pressure at 3 meters below the surface of a pool with fresh H20. I don't know what equation to use. You have to figure the weight of a column of water of some height h, and horizontal area A. Weight= mg= density*volume*g...
March 29, 2007

physics
What would be the final temp when 100 kg of 0 degrees Celcius cold water is mixed with 60 kg of 35 degrees warm water? Ans is in degrees Celcius. The sum of the heats gained is zero (remember one will lose heat, so have a negative heat gained). Heatgained by cold water + heat ...
March 29, 2007

legal studies
how in practice the operation of local court differs from that of others??? I have a judge here in our local district court who drives me mad with his innane dress code for men. I think he has a fixation on ancient times. I wonder sometimes if he would rather be addressed as ...
March 29, 2007

Physics
In the old days, on a cold winter night it was common to bring a hot object to bed with you. Which would be better to keep you warm through the cold night - a 10 kg iron brick or a 10 kg jug of hot water at the same temperature? 10 kg iron brick 10 kg jug of hot water WHY?!!
March 27, 2007

none
turn polar bears white And I will make you cry. I make guys have to pee And girls comb their hair. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champane bubble. If you sqeeze me, I'll pop. If you look at me, ...
March 23, 2007

AP U.S. History 1920's immigration
who were the immigrants in the 1920's
February 21, 2007

Physics
yes
October 3, 2006

orientalism of muslim and arab american
UOP~It makes me laugh that this question has been a problem for years. Even after reading the informaiton in the text, there are additional questions that need to be answered and is difficult to find anything else on this topic.
August 6, 2006

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