The density of an object is defined as its mass divided by its volume. Mathematically, density = Mass / Volume. The unit of density is kilogram per cubic meter, kg / m^3 or g /cm^3.

For the question given above: the

Mass = 200.0 g

Volume = 100.0 cm^3

Therefore, Density = Mass / Volume = 200 / 100 = 2

Thus, the density of the object is 2 g /cm^3.

**Answer : The correct option is, (c) 79.62**

**Explanation :**

**The formula used for percent humidity is:**

** ..........(1)**

**The formula used for relative humidity is:**

** ...........(2)**

where,

= partial pressure of water vapor

= vapor pressure of water

p = total pressure

**First we have to calculate the partial pressure of water vapor by using equation 2.**

**Given:**

Relative humidity = 80 % = 0.80

Now put all the given values in equation 2, we get:

**Now we have to calculate the percent humidity by using equation 1.**

**Therefore, the percent humidity is 79.62 %**

**Answer:**

I would try but i just need points good luck tho