If you are given the number of molecules in an unidentified chemical compound can you calculate the number of moles in this sample

By using mole concept

Explanation:

We are given:

An unknown compound having some number of molecules.

To calculate the number of moles that are contained in a sample, we use mole concept:

According to mole concept:

1 mole of any compound contains number of molecules.

Using this relation and applying unitary method, we can easily calculate the number of moles of a compound.

For Example: A sample of water contains number of molecules.

So, by using mole concept:

number of molecules are contained in 1 mole of a compound.

So, number of molecules will be contained in of water

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

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