Question

Sodium hydroxide, NaOH, solutions can be used to acids such as hydorchloric acid, HCl:

HCl(aq) + OH(aq) ? Cl(aq) + H2O(l)

A 0.500 M NaOH solution is used to titrate several aliquots of 25.00 mL of an unknown concentration of HCl. Use the data in the table below to determine the average concentration of the hydrochloric acid solution (starting before the titration) and the standard deviation.

Trial # Volume NaOH (mL) Trial # Volume NaOH (mL)
1 16.01 6 15.84
2 15.54 7 15.89
3. 15.71 8 15.77
4 15.62 9 15.66
5 15.99 10 15.55
0 0
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Answer #1

rial Val me of Cor entation ofAd no Waoh (V กา () 16 0 (a)IS 54 G) s 71 o 31 0-31 O 31 о-за o 3.2 0 32 о,за 0 31 , 31 s)Is 99

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