Discover new perspectives and gain insights with IDNLearn.com. Our platform is designed to provide accurate and comprehensive answers to any questions you may have.
Sagot :
Answer:
pH = 2.66
Explanation:
- Acetic Acid + NaOH → Sodium Acetate + H₂O
First we calculate the number of moles of each reactant, using the given volumes and concentrations:
- 0.75 M Acetic acid * 50.0 mL = 37.5 mmol acetic acid
- 1.0 M NaOH * 10.0 mL = 10 mmol NaOH
We calculate how many acetic acid moles remain after the reaction:
- 37.5 mmol - 10 mmol = 27.5 mmol acetic acid
We now calculate the molar concentration of acetic acid after the reaction:
27.5 mmol / (50.0 mL + 10.0 mL) = 0.458 M
Then we calculate [H⁺], using the following formula for weak acid solutions:
- [H⁺] = [tex]\sqrt{C*Ka}=\sqrt{0.458M*1.76x10^{-5}}[/tex]
- [H⁺] = 0.0028
Finally we calculate the pH:
- pH = -log[H⁺]
- pH = 2.66
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Thank you for choosing IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more solutions.