Write the equation - balance it
( HCl + NaOH --> NaCl + H2O )
Look at the numbers in the front of the acid and base to see how many moles of each there are
There are no numbers(in this case) so 1 mole each
Meaning: If 0.5 moles of base are used then 0.5 moles of acid are needed - ratio 1:1
Use info you know for the base to calculate how many moles of the base were used
No.Moles = concentration x volume (cm3)
Number of moles in acid = same
calculate concentration:
concentration = no.moles / volume
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