help:chemistry....topic:solutions..?

Question

... i'll give you ten points and a thumb's up!.. this could be a great help for my study!... thnks...if you could define correctly all of the following:

Molarity

Molality

Non- polar substances

Polar substances

Intramolecular bonding

Intermolecular bonding

Covalent bond

Ionic bond

Polar bonding

Hydrogen bonding

Answer 1

1. Molarity (M) denotes the number of moles of a given substance per litre of solution (e.g. 4.0 litres of liquid, containing 2.0 moles of dissolved particles, constitutes a solution of 0.5 M.)

2. Molality denotes the number of moles of a given substance per kilogram of solvent. (Note: Solvent is not the same as solution)

3. Non- polar compound is due to (almost) no polarity in the bonds or because of the symmetrical arrangement of polar bonds.

4. Polar compound is a result of polar bonds or as a result of an asymmetric arrangement of non-polar bonds and non bonding pairs of electrons.

Molecular polarity is dependent on the difference in electronegativity between atoms in a compound and the asymmetry of the compound's structure.

5. Intramolecular bonding refers to the bond that holds the atoms making up a molecule together.

6. Intermolecular bonding refers to the bonds that act between molecules or between widely separated regions of a macromolecule.

7. Covalent bond is an intramolecular bond. It is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms.

8. Ionic bond is an intramolecular bond. It is a type of chemical bond based on electrostatic forces between two oppositely-charged ions.

9. Polar bonds are bonds which have unequal sharing of electrons between the two atoms involved in bonding.

10. Hydrogen bond is a bond that exists between an electronegative atom and a hydrogen atom bonded to another electronegative atom.

I hope it helped. Good luck!

Answer 2

you will find all these in a text book for basic chemistry, refer those or search wikipedia.
still:
molarity : no of moles per lit of solution

molality : no of moles per kg of solvent

non polar subs : that are not attracted by water basically. they do not have a +ve and -ve poles in their structure, eg methane

polar subs : opposite of above. eg NaCl, H2O.

intramolecular bonding : that results within the molecule itself.

intermolecular bonding : that results btwn molecules.

covalent bond : bonds formed due to electron sharing

ionic bond : bonds formed due to ions. transfer of electrons takes place.

polar bonding : when 2 polar subs form a weak bond

hydrogen bonding : bonds formed intermoleculy btwn H and non metals.

Answer 3

Every last one of these should be in your text book. I'm not trying to be mean but the best way to learn is to do your own work and looking up defs in a text book glossary isn't that hard.

edit: Or use wiki if you're in this much of a pinch.