Tuesday
May 21, 2013

# Posts by anmol

Total # Posts: 40

science
frastrated over your difficult asignment , you slam your hand on the table. ouch! why does your hand hurt? would it hurt if the table had broken when you hit it? (using Newton's third law)

Chemistry
The Ksp for PbF2 is 7.1 x 10 to the(-7). The Kb for the F- anion is 1.4 x 10 to the(-11). A student weighs out 2.5 g of PbF2, places it into 100mL of deionized water and stirs. a) Will there be any solid PbF2, left in the flask? b) What is the pH of the solution?

Chemistry
The Ksp for PbF2 is 7.1 x 10 to the(-7). The Kb for the F- anion is 1.4 x 10 to the(-11). A student weighs out 2.5 g of PbF2, places it into 100mL of deionized water and stirs. a) Will there be any solid PbF2, left in the flask? b) What is the pH of the solution?

Chemistry
A solution is prepared by mixing 13.00 ml of .0021 M aqueous Hg2(NO3)2 with 25 ml of .015M HCL. Assme that volumes are additive. a) Will precipitation occur? b) Calculate [HG2 2+], [CL-], and [NO3] after equilibrium is established.

Chemistry
It has been proposed that wood alcohol, CH3OH, a relatively inexpensive fuel to produce, be decomposed to produce methane. Methane is a natural gas, commonly used for heating homes. is a decomposition from wood alcohol to methane and oxygen thermodynamically feasible at 25 deg...

Chemistry
What is the density of an aqueous solution of potassiu nitrate that has normal boiling point of 103 celsius and an osmotic pressure of 122 atm at 25 celsius?

chemistry
no neither of them are given..just the assumptions i mentioned

chemistry
Also this is assumed that it occurs at 1 atm. and the final temperature of the water is the same temperature of the gas.

chemistry
Hii i was wondering if u cud help me solve this problem..im not sure how to start it. Calculate the delta H for the reaction of solid potassium with liquid water. If a 5.00 g piece of potassium is added to 1.00 kg of water at 24 degrees celsius what is the final temperature of...

math
x + 5 > 9 =

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