Thursday
November 20, 2014

Posts by laney


Total # Posts: 39

Math
You are about to leave for vacation, but you forgot your socks! You go back to your room but lights are out, can't see. You remember that in your draw you have 10 pair black, 10 pair white and 11 pair blue all mixed up. How many socks do you need to take out to be SURE you...
April 6, 2014

Math
no I think that is wrong because the answer is -32/5 I just need the work.
September 5, 2013

Math
what is -6.4 as a fraction?
September 5, 2013

Physics
A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the instant it strikes the ...
November 19, 2012

chem class
The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?
November 24, 2010

chemistry
The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?
November 23, 2010

6th grade
The direction sliding between tire and road.
October 24, 2010

chem 1406
ok thats where i got the number 8260000kj=kj uuuggggh i dont know what im doing wrong!!
April 27, 2010

chem 1406
ok so (2000moles/1)(4130kj/1mole) = (kj/2000 moles)(2000 moles/1) (2000)(4130kj) = kj now what?
April 27, 2010

chem 1406
ok so then i set it up wrong it should be 4130 kj/1 mole = 2000 moles/kj and that time i got 8260000 i dont know if that is right because the kj would cancel out too
April 27, 2010

chem 1406
i got 2.065 kJ/mole
April 27, 2010

chem 1406
so i would set the problem up like this.... 4130kJ/1 mole = xkJ/2000 moles ???
April 27, 2010

chem 1406
Consider: C7 H16(L) + 11 O2 (G) yields 7 CO2 + 8 H2O (L) delta Hreaction = -4130 kJ How much energy is released when 2,000 moles of C7 H16 is combusted?
April 27, 2010

another college chem
its all good
April 27, 2010

another college chem
Calculate the boiling point of a 4.35 m benzene solution in phenol. (phenol bp=181.75 degree C and Kb=304 degree C/m)
April 27, 2010

College chemistry
ok, we didnt do joules in class, so hopefully thats what my teacher wants. thank you!
April 26, 2010

College chemistry
i got 5020.8
April 26, 2010

College chemistry
ok so it'd be (2.00*10^2)(6.00 degree C) and then what would be the specific heat?
April 26, 2010

College chemistry
do i use the 5.00 g or the 2.00 * 10^2 g?
April 26, 2010

College chemistry
5.00 g of octane are burned in a bomb calorimeter containing 2.00 * 10^2 g of water. how many Calories of energy are released if the water temperature increases 6.00 degrees C?
April 26, 2010

College chemistry
ok thank you!! i posted a new question! i have a test tomorrow morning and im doing a practice exam and a few questions stumped me!!
April 26, 2010

College chemistry
i got a huge number, is 191.20 correct?
April 26, 2010

College chemistry
How do you calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.
April 26, 2010

chemistry
Calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.
April 26, 2010

geometry
describe how you would find the total area of the lateral faces of a cube?
March 16, 2010

MATH
LAMONT IS REQ TO READ 1 BIO, 1 SCIENCE, AND 1 POETRY BOOK EACH MONTH. HIS BOOK CHOICES ARE: 2 DIFF BIOS 3 DIFF SCIENCE 3 DIFF POETRY HOW MANY COMBINATIONS OF REQ BOOKS ARE POSSIBLE?
January 26, 2009

math
I have the upse question and want to know what the upse stands for. I think the u means understand, p means plan and s means solve and e means evaluate, but I am not sure. I would also like an example of this.
October 6, 2008

math
Can anyone tell me the parts to an upse which is used to solve a word problem? Could you also give me an example of how it works. Thanks
October 6, 2008

math
how do i solve the problem what is the radius of a circle with a circumference of 24 pie
September 27, 2008

math
how do i solve the following: 6 X 10 to the power of one + 5 X 10 to the power of zero + 4 X 10 to the negative power of one?
September 27, 2008

math
how do I add decimals for example 3.2 + 1.8
September 27, 2008

math
how do i write a fraction for 87 1/2 percent
September 27, 2008

math
I don't understand how to do it can you show me.
September 27, 2008

math
how do i solve 8 is to 15 as 24 is to __________
September 27, 2008

math
how can you tell which is smaller 0.33 or 1/3
September 27, 2008

math
What is the largest prime number less than 50 and how do you know?
September 27, 2008

Math
LIV Arabic number?
September 27, 2008

history
Thanks!
March 26, 2008

history
What does class-system and class-state mean? I can't find the meanings in the dictionary.
March 26, 2008

Pages: 1

Search
Members