Calculating the pH of a HCl-NaOH Mixture

Thread starter geffman1
Start date Jun 18, 2009
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Mixture Ph

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The discussion focuses on calculating the pH of a mixture created by combining 200 mL of 0.15 M HCl with 300 mL of 0.090 M NaOH. Participants calculate the concentrations of H+ and OH- ions, finding 0.03 M and 0.027 M, respectively. The correct pH is determined to be 2.2, using the formula pH = -log[H+]. The conversation highlights the importance of understanding acid-base neutralization and pH calculations. Overall, the mixture's pH reflects the strong acidity of HCl despite the presence of NaOH.

Jun 18, 2009

geffman1

A solution which is formed by combining 200. mL of 0.15 M HCl with 300. mL of 0.090 M NaOH has a pH of ____

ive worked out concentration of H ion is 0.03 and the concentration of OH ions 0.027. but i don't know what to next?

answer is 2.2 thanks

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Jun 19, 2009

chemisttree

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Hmmmm. pH = -log[H+]

Jun 19, 2009

Borek

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very similar pH calculation question

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