How many moles of HCL are in 20 ml sample of .10 M HCL
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0.002 moles
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Concept tested: Molarity
We are given;
Volume of HCl as 20 ml or 0.02 L Molarity of HCl solution as 0.10 M We are required to calculate the number of moles of HCl
What is molarity?
Molarity is the concentration of a solution in moles per liter How is it calculated?
It calculated by dividing number of moles by volume; Molarity = Number of moles ÷ Volume To calculate the number of moles we rearrange the formula;
Moles = Molarity × Volume
In this case;
Moles of HCl = 0.10 M × 0.02 L
= 0.002 moles
Therefore, the number of moles of HCl is 0.002 moles
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