Question

How to find grams from Molarity and ml? Whats the mass of 6 M HCL that...

How to find grams from Molarity and ml?

Whats the mass of 6 M HCL that has a volume of 1.5 mL?

Whats the mass of diethyl ether given it has a volume of 1 ml?

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Homework Answers

Answer #1

Molarity (M) is defined as the number of moles (n) per unit volume (V), where moles is the ratio of mass (m) of the substance to its molar mass or molecular weight (mw).

rearranging this equation to get the mass will tell us the grams of the substance:

Mass of 6M HCl:

(becuase molar mass of HCl = 36.46 g/mol)

To calculate the mass of diethyl ether we need to know its concentration. Using the molar mass of diethyl ether as 74.12 g/mol and the volume that you've given (1mL = 0.001 L), I have provided the formula-

you can plug in the value of the molarity (M) and calculate the mass.

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