Which one of the following substances should exhibit hydrogen bonding in the liquid state? A) PH3 B) He C) H2S D) CH4 E) CH3OH

1 answer:

4 0

Hydrogen bonds have only a third of the strength of covalent bonds, but they have important effects on the properties of the substances in which they occur, especially in terms of melting and boiling points in crystal structures. The compounds with greater capacity to form hydrogen bonds are the most electronegative such as N, O and F. Some compounds that possess hydrogen bond are:

H-O-H, H3C-O-H, N-CH3

Answer:
CH3OOH

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What is the molecular formula of an empirical N2H3 if n=2? <br><br>SHOW WORK!

aliya0001 [1]

A compound's empirical formula tells you what the smallest whole number ratio between the atoms that make up that compound is.

I think of the empirical formula as a building block for molecules. A compound's molecular formula will depend on how many building blocks are needed to build a molecule of a given substance.

In your example, you know that the empirical formula of the compound is

This tells you that the minimum ratio between nitrogen atoms and oxygen atoms is

. In other words, the molecular formula will be a multiple of this building block.

molecular formula

empirical formula

, where

- the number of building blocks needed to build the molecular formula.

You also know that the molar mass of your compound is

92 g/mol

This means that the molar mass of all the atoms that make up that molecule must add up to give

92 g/mol

So, how would you determine how many building blocks you need? Well, start by figuring out the molar mass of one building block, i.e. the molar mass of the empirical formula.

Since it contains one nitrogen atom and two oxygen atoms, you will get

14.0067 g/mol

15.9994 g/mol

46.0055 g/mol

So, if one building block has a molar mass of

46.0055 g/mol

, how many would you need to get the molecule?

46.0055 g/mol

⋅

92 g/mol

g/mol

46.0055

g/mol

1.99976

≈

This means that the compound's molecular formula, which lists all the atoms that make up a molecule, will be

(

)

→

dinitrogen tetroxide

7 0

3 years ago

Read 2 more answers

Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electron

katrin [286]

Answer:

The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.

Explanation:

Ionic compounds are compound formed from the transfer of electron(s). One atom of the element loses electron(s) while the other atom gains electron(s).

The compound Magnesium chloride is an ionic compound . The bond between an atom of magnesium and 2 atoms of chlorine is an ionic bonding.

The valency electron of magnesium is 2 electron , for the atom of magnesium to attain octet rule, it will easily lose it 2 electrons to the chlorine atoms.

The chlorine atom on the other hand has 7 valency electrons, to attain octet configuration it will most likely gain 1 electron to become stable.

The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.