What is the volume of 36.0 g of air if the density of air is 0.0012 g/mL? (SHOW WORK)

Given,

Mass of air, m = 36 g

The density of air, d = 0.0012 g/mL

To find,

The volume of air.

Solution,

Density is defined as the mass of an object per unit volume. It can be given by the formula as follows :

So, the volume of the air is 30000 mL.

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol