The measurement of moles of solute per kilogram of solvent is known as
a. molarity.
b. molality.
c. parts per million.

Option b: molality

That is the definition of molality.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.