Thursday
December 8, 2016

# Posts by neeta

Total # Posts: 14

maths
The area of a rhombus is 84 cm2 and one diagonal is 12 cm. Find the other diagonal of the rhombus.
September 12, 2016

Calculus
Verify the conditions for Rolle's Theorem for the function f(x)=x^2/(8x-15) on the interval [3,5] and find c in this interval such that f'(c)=0 I verified that f(a)=f(b) and calculated f'(x)= (8x^2 -30x)/64x^2 -240x +225) But I'm having trouble finding c when ...
July 22, 2014

Chemistry
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0290 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate?
April 11, 2014

Chemistry
My bad, it was 1.01E-7. I made a typing error on the calculator.
April 10, 2014

Chemistry
Oh, that is what I did wrong. It was actually 1.01E-11, not 1.01E-7. Sorry to waste your valuable time.
April 10, 2014

Chemistry
3.03x10^-11
April 10, 2014

Chemistry
I'm still not getting it right.. But I don't understand what I did wrong. I did 3.9x10^-26 = [3x]^3 [1.4x10^-6] then isolated [3x]^3, then took the cube root of both sides.
April 10, 2014

Chemistry
What concentration of Ag is in equilibrium with 1.4 × 10^-6 M Co(CN)63– and Ag3Co(CN)6(s)? The solubility constant of Ag3Co(CN)6 is 3.9 x 10^-26
April 10, 2014

Chemistry
The Ksp of iron(II) hydroxide, Fe(OH)2, is 4.87 × 10-17. Calculate the solubility of this compound in g/L.
April 10, 2014

Chemistry
A student was given a solid containing a mixture of nitrate salts. The sample completely dissolved in water, and upon addition of dilute HCl, no precipitate formed. The pH was lowered to about 1 and H2S was bubbled through the solution. No precipitate formed. The pH was ...
April 10, 2014

Chemistry, Science
Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. However, when additional aqueous hydroxide is added the precipitate redissolves ...
April 10, 2014