What is the number of moles of a solute that is dissolved in 1 l of solution ?

a. mass percent
b. molality
c. molarity
d. mole fraction

Molarity

We need to know the definition of molarity;

What is molarity?

How is molarity calculated?

Example;

Molarity = Moles ÷ Volume

              = 0.25 moles ÷ 0.5 L

              = 0.5 Mol/L

Therefore, the molarity of sodium hydroxide solution will be 0.5 mol/L.

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hope that

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8