Answer :

1.65 x 10^24  molecules in 100 grams of HCL

because HCL is 36.461 grams/mol

and there are 6.02 x 10^23 molecules/ mol

if you did stochiometry this is what you will get 1.65 x 10^24

hope i helped

The number of molecules that are present in 100g of HCl is 16.5×10²³.

What is Avogadro's number?

Avogadro's number is the number of entities which are present in 1 mole of any substance and it is equal to 6.022×10²³.

For this question moles of HCl will be calculated as:

n = W/M, where

  • W = given mass = 100g
  • M = molar mass = 36.45g/mol

n = 2.74 mol

Now number of molecules in this given moles will be calculated as:

No. of molecules = (2.74)(6.022×10²³) = 16.5×10²³

Hence required number of molecules are 16.5×10²³.

To know more about Avogadro's number, visit the below link:

https://brainly.com/question/3994829

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