Q. 6.119 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the formula for each of the following molecular compounds: $(6.5)$

a. carbon sulfide

b. diphosphorus pentoxide

c. dihydrogen sulfide

d. sulfur dichloride

Step-by-Step Solution

Answer

(a) Carbon sulfide has the formula $C{S}_2$.

(b) Diphosphorus pentoxide has the formula $P_2{O}_5$.

(c) dihydrogen sulfide has the formula $H_{2}S$.

(d) sulfur dichloride has the formula $SC{l}_2$.

Part(a) Step 1: Given information

We have to find out the formula of carbon sulfide.

Part(a) Step 2: Explanation

Now, Carbon = C and sulfide = S,

As there are $1$molecule of carbon and $1$molecule of sulfide,

And valency C$=4$ and S$=-2$,

So, formula is $C{S}_2$.

Part(b) Step 1: Given information

We have to find out the formula of diphosphorus pentoxide.

Part(b) Step 2: Explanation

Now, Phosphorus = P and Oxide = O,

As there are $2$ molecule of Phosphorus and $5$ molecule of Oxide,

And valency P$=3$ and O$=2$,

Hence formula $P_2{O}_5$.

Part(c) Step 1: Given information

We have to find out the formula of dihydrogen sulfide.

Part(c) Step 2: Explanation

Now, Hydrogen = H and Sulfide  = S,

As there are $2$molecule of hydrogen and $1$molecule of sulfide,

And valency H$=1$ and S$=2$,

Hence formula $H_{2}S$.

Part(d) Step 1: Given information

We have to find out the formula of sulfur dichloride.

Part(d) Step 2: Explanation

Now, sulfur = S and chloride = Cl,

As there are $1$molecule of sulfur and $2$molecule of chloride,

And valency S$=2$ and Cl$=1$,

Hence the formula $SC{l}_2$.