Question

Find the molecular weight of :hydrochloric acid​

Answer 1

`\boxed{36.5 u}`

Step-by-step explanation:

Hydrochloric acid is
`\boxed{\red{\rm{HCl}}}`

To find the molecular weight of a compound, we need simply the add the atomic weights of the elements multiplied by their atomicity.

Here, we have 1 atom of H and 1 atom of Cl in one molecule of HCl. Atomic weight of H is 1 and Cl is approx 35.5. Then molecular weight of HCl is:

= 1 + 35.5

= 36.5

Molecular weight is a relative quantity, so it has no units. But conventionally we write amu or u in the end to represent it as molecular weight. So molecular weight of HCl is 36.5 u

Answer 2

98 is the answer.

Step-by-step explanation:

step 1 ,

= ( atomic mass of H)2 + atomic mass of S + (atomic mass of O)4.

= 1 ×2 + 32 + 16×4

= 2+32+64

= 98