Answer:
See image attached
Explanation:
The hydroxide ion concentration can easily be calculated from the concentration of the metal hydroxide solutions given as shown in the solution attached. The pH can now be obtained from there using pH+pOH=14. The pH value is always greater than the the pOH value as shown in the solution to the problems attached.
Question (c) contains incorrect data that cannot be used to calculate the required parameters.
Explanation:
Monodentate ligands are the ligands which bind through only one donor atom. Example: chloride ion.
Monodentate ligands are the ligands which bind through two donor atom. Example: ethylenediamine.
When ligands bond with transition metal ion, repulsion between electrons in ligands and electrons in d orbitals of metal ion takes place which raises energy of d orbitals which causes the light to fall in the visible region.
Coordination number is number of donor atoms attached to central ion in a coordination complex. Coordination number of the chromium(III) is usually 6 means that usually chromium(III) bond to 6 ligands and form an octahedral complex.
The resistance to being scratched is a mineral's hardness
Convert 55.0g Ca(OH)2 to mols.
55.0g Ca(OH)2 = 0.742 mols Ca(OH)2
0.742mol Ca(OH)2/ 0.680M Ca(OH)2 = 1.09L Ca(OH)2
Neglecting the volume of the Ca(OH)2 itself, since it is minimal and its density wasn't provided, 1.09L would be the total volume of a 0.680M solution produced by dissolving 55.0g of Ca(OH)2 in enough water.
a resource that cannot be replenished in a short period of time