Saturday
December 20, 2014

Posts by jakob


Total # Posts: 15

physics
i dunno
February 3, 2014

Physics
Two identical objects are in the same surroundings at 4.50oC. One is at a temperature of 1400 K, and the other is at 1040 K. Find the ratio of the net power emitted by the hotter object to the net power emitted by the cooler object.
November 14, 2012

Reading
What does the word distinct mean and can you use it in a sentence?
April 12, 2012

grade 5 math (please help)
The theater group performed on Friday and Saturday night. Three hundred and twenty four attended on Friday, and 33 more attended on Saturday. How many people saw the show? I need to write an equation for this.
September 19, 2010

Chemistry
I figured it out! Thanks!
June 2, 2010

Chemistry
Calculate the pH and pOH of a solution prepared by dissolving 0.93 g of HCl in enough water to give 0.40 L of solution.
June 2, 2010

Chemistry
Why is this Alkene structure: CH3 - CH = C - CH3 | Cl called 3, chloro - 2, butene and not 2, chloro - 2, butene? I thought that the counting starts at the end closes to the first substituent? Wouldn't that make it start from the right? Thanks!
May 31, 2010

Chemistry
What is the pH of a 0.001 M formic acid solution? Ka = 1.8 x 10^-4. I don't know what to do!
May 29, 2010

Chemistry
Sorry, I understand now... thank you very much for your help!
May 25, 2010

Chemistry
I don't understand... I thought OH is only raised to the 2nd power? Not multiplied by 2 and then raised to the 2nd power? So the Ksp should be [Fe][2OH]^2?
May 25, 2010

Chemistry
Approximately 1.5 10-3 g of iron(II) hydroxide, Fe(OH)2(s) dissolves per liter of water at 18°C. Calculate Ksp for Fe(OH)2(s) at this temperature. This is what I've done: 1.5x10^-3 g Fe(OH)2/L x 1mol Fe(OH)2/89.863g Fe(OH)2 = 1.669x10^-5 M Fe(OH)2 Fe(OH)2 = Fe + 2OH ...
May 25, 2010

Chemistry
How many individual hydroxide ions (OH)- are found in 13.4mL of 0.586M Ba(OH)2? I'm not quite sure how to do this. Thank you!
May 18, 2010

science
what is an example of an unseen reciever of a force?
September 24, 2007

Alabama History
what river forms the border between alabama and georgia
August 24, 2007

chem
I am posed with a question which, in order to be solved, needs the Van't Hoff Factor of ethylene glycol. Some research has shown me that ethylene glycol is an electrolyte, but I don't know how it dissociates in water. Any help would be appreciated. It is not an ...
March 24, 2007

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