Saturday
December 7, 2013

# Posts by maddy

Total # Posts: 110

Chemistry-Help Dr. Bob222
The equation I'm trying to use looks like this: 1.0 x 10^-14 divided by 6.4 x 10^-6 which gives me a solution of 1.5625 x 10^-9 which can't be right!

Chemistry-Help Dr. Bob222
Thanks, totally still confused. I don't know how to solve for (x) since I don't know what the acid is?

Chemistry-Help Dr. Bob222
If a weak acid has a dissociation constant of 6.4 x 10^-6, what is the pH of a solution of this acid in a 0.10 molar concentration? I still don't understand the equation you gave me. My textbook doesn't break it down like this, so I'm confused as to where to plug t...

Chemistry-pH problem
If a weak acid has a dissociation constant of 6.4 x 10(-6), what is the pH of a solution of this acid in 0.10 molar concentration?

Chemistry-Confused by titration!!
If a 28 mLs of a 0.25 molar NaOH solution is used to titrate 14 mLs of a nitric acid to its phenolphthalein endpoint, what is the molar concentration of the acid?

Math
Can 252/1663 be simplified? If it can be simplified, what is the new simplified fraction?

math 11
Please help this question is from my unit on linear programing and I'm having trouble completing it. A company manufactures bicycles and tricycles. The total number of frames the company manufactures cannot exceed 80 per month. It takes the company 1 hour to assemble a bic...

math (linear programing problem)
Please help this question is from my unit on linear programing and I'm having trouble completing it. A company manufactures bicycles and tricycles. The total number of frames the company manufactures cannot exceed 80 per month. It takes the company 1 hour to assemble a bic...

AP Physics
Jean, who likes physics experiments, dangles her watch from a thin piece of string while the jetliner she is in takes off from Dulles Airport (Fig. 4-55). She notices that the string makes an angle of 24° with respect to the vertical while the aircraft accelerates for take...

AP Physics
An 18.0 kg box is released on a 35.0° incline and accelerates down the incline at 0.269 m/s2. Find the friction force impeding its motion. How large is the coefficient of friction?

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