The addition of 5.0x10–3 total moles of Zn2+ to a 1.0 L solution of NaCN gives a solution of the complex ion [Zn(CN)4] 2– (Kf = 4.17x1019). What is the equilibrium concentration of uncomplexed Zn2+ ions if the concentration of cyanide ions at equilibrium is 0.50 M?

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent