What is the molecular weight (mass) for koh? 56.10 g/mol 57.00 g/mol 28.00 g/mol

Molecular weight (mass):

It is the molecular mass of a substance that can be calculated by sum of atomic weight of atoms that are present in the molecule multiple by the total number of molecule.

In KOH,

Atomic weight of K=39.1

Atomic weight of O=15.9

Atomic weight of H=1

Molecular weight=Atomic weight of K+Atomic weight of O+Atomic weight of H

=56.1 g/mol

So the answer is A that is 56.10 g/mol

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

2b2t

explanation:

2b2t