Calculate the number of moles of HCl present in... - JAMB Chemistry 2007 Question
Calculate the number of moles of HCl present in 20cm3 of a 0.75M solution of the acid
A
0.015 mole
B
0.038 mole
C
3.800 moles
D
1.500 moles
correct option: a
Number of moles = (conc. in mol/dm3*volume in cm3)/1000
(0.75 * 20)/100 = 0.015 mole
(0.75 * 20)/100 = 0.015 mole
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