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When making a molar liquid solution from a dry chemical stock you must know the molecular weight of the compound. True or false?

User Doctor Dan
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Answer: True

Step-by-step explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.


Molarity=(n)/(V_s)

where,

n= moles of solute


Moles=\frac{\text{Given mass} of solute}{\text{Molar mass of the solute}}


V_s = volume of solution in L


Molarity=\frac{\text {given mass of solute}}[\text {molecular mass of solute} times V_s}

Thus when making a molar liquid solution from a dry chemical stock you must know the molecular weight of the compound.

User Jared Harley
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