# Very short answer question first name any two hydrotropes

ROSHAN MUJEEB
3 years ago
Examples ofhydrotropesinclude urea, tosylate, cumenesulfonate and xylenesulfonate. The term hydrotropy was originally put forward by Carl Neuberg to describe the increase in the solubility of a solute by the addition of fairly high concentrations of alkali metal salts of various organic acids.
Rishi Sharma
3 years ago
Dear Student,

When one electron from neutral helium atom is removed, it becomes hydrogen like. The ionisation energy of hydrogen like atom is given by
Eion​ = Z^2Rhc
for helium, Z=2 Rhc=13.6eV
∴ Energy required to liberate second electron from helium
E2​ = Eion ​= 22×13.6eV = −54eV
∴ Energy required to remove both the electrons from helium is
= E1​+E2 ​= (24.6+54.4)eV = 79.0eV

Thanks and Regards
Rishi Sharma
3 years ago
Dear Student,

When one electron from neutral helium atom is removed, it becomes hydrogen like.
The ionisation energy of hydrogen like atom is given by
Eion​ = Z^2Rhc for helium,
Z=2 Rhc=13.6eV
∴ Energy required to liberate second electron from helium
E2​ = Eion ​= 22×13.6eV = −54eV
∴ Energy required to remove both the electrons from helium is
= E1​+E2
​= (24.6+54.4)eV
= 79.0eV

Thanks and Regards