An unknown compound with a molar mass of 155.06 g/mol consists of 46.47% c, 7.80% h, and 45.72% cl. find the molecular formula for the compound. c6h12cl2 chcl c9h18cl3 c6h12cl

The emperical formula of compound is calculated as:

Atomic ratio for Carbon, :

Atomic ratio for Hydrogen, :

Atomic ratio for Chlorine, :

The simplest ratio is:

For Carbon =

For Hydrogen =

For Chlorine =

So, the emperical formula of the compound is .

For determining the molecular formula:

Molar Mass =

Emperical Formula Mass =

Substituting the values,

Since, so, the molecular formula is:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms