adigupta99932

In the presence of aqueous NH3, copper(II) forms the complex ion Cu(NH3)4 2+ . Determine the molar concentration of free (uncomplexed) copper(II) ion in solution when 0.20 mol of Cu(NO3)2 is dissolved in a liter of 1.0 M NH3

Copper (II) forms a complex ion with ammonia. (Kf(Cu(NH3)4 2+ (aq)) = 5 × 1012) Calculate the concentrations of each aqueous species if 0.020 moles of Cu(NO3)2 are dissolved in 1.0 liter of 1.00 M NH3. You may neglect the hydrolysis of NH3.

The answers are [Cu2+] = 5.6 * 10^-15, [NH3] = .92 and [Cu(NH3)4 2+] = .02 but I want to see steps of how you solved it. Thanks!

Who is develop java? 

Most M-O-M bonds are angular but some are linear, namely, that in[(NH3)5Cr-OCr( NH3)5]4+. Why?

Think it has to do with the bridging of the Oxygen atom, but notsure.

A 2.00-kg block slides on a frictionless horizontal surface and is connected on one side to a spring with a spring constant of 45.0 N/m) as shown the figure. The other side is connected to a 4.00-kg block that hangs vertically. The system starts from rest with the spring unextended.

(a) What is the maximum extension of the spring?

(b) What is the speed of the 4.00-kg block when the extension is 50 cm?

A man has a mass of 6 slugs on Earth. What is his weight in pounds on Earth and Jupiter (g=105.38 ft/sec ^2 for Jupiter)?

You will receive credit for an original posting (paragraph format using minimum of 200 words submission.

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