Tuesday
December 10, 2013

# Posts by greg

Total # Posts: 387

Chemistry
Calculate the mole fraction of glucose (C6H12O6) in a solution which contains 15g of glucose in 100 g of H2O.

Chemistry
For the reaction IO3– + 5I– + 6H+ 3I2 + 3H2O the rate of disappearance of I– at a particular time and concentration is 2.8 x 10-3 M s-1. What is the rate of appearance of I2 in molarity per second?

Chemistry
A buffer is prepared by transferring equal concentrations of the components of the conjugate pair, C6H5COOH and C6H5COONa, into a beaker. What is the approximate pH of the buffer? (Ka = 6.5  10–5) a) 2.81 b) 4.19 c) 7.00 d) 9.81 e) 11.19

Chemistry
how does a formula of Iron(III) and ethylenediamine, assuming a coordination number of 6 look and what is it's name and written transition metal formula

Chemistry
how does a fomula of Iron(III) and ethylenediamine, assuming a coordination number of 6 look and what is it's name?

Chemistry
Ammonia is a stronger ligand than is the chloride ion. What does this statement mean?

Math
A square is made up of section A and section B. Section A is 500 sq. ft. and section B is 750 sq. ft. What percent of the square is section A?

chemistry
Calculate the solubility of Cacl2 in g/L based on the experiement. Given 650g of CaCl2 added to 1.0L and allowed to dissolve as much as possible. While the remaining solid CaCl2 is filtered out of the solution and found to have a mass of 5.509g. What is the solublity of CaCl2

trig
y=92.5 x=157.9 x+y=250.4ft

trig
y=92.5 x=157.9 x+y=250.4ft

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