Calculate the amount (in mol) of hydrochloric acid, HCl (aq), in 50.0 cm3 of a 2.00 mol dm–3 solution of HCl.
Question
Calculate the amount (in mol) of hydrochloric acid, HCl (aq), in 50.0 cm3 of a 2.00 mol dm–3 solution of HCl.
Solution
To calculate the amount of HCl in moles, you can use the formula:
Moles = Concentration (mol/dm^3) x Volume (dm^3)
First, convert the volume from cm^3 to dm^3. There are 1000 cm^3 in 1 dm^3, so:
50.0 cm^3 = 50.0 / 1000 = 0.050 dm^3
Then, substitute the values into the formula:
Moles = 2.00 mol/dm^3 x 0.050 dm^3 = 0.10 mol
So, there are 0.10 mol of HCl in 50.0 cm^3 of a 2.00 mol/dm^3 solution.
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