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Sodium benzoate (C6H5CO2Na) is used as a food preservative. Part A Calculate the pH in 0.052 M...

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Chemistry

Sodium benzoate (C6H5CO2Na) is used as a food preservative.

Part A

Calculate the pH in 0.052 M sodium benzoate; Ka forbenzoic acid (C6H5CO2H) is 6.5×10−5.

Part B

Calculate the concentrations of all species present (Na+,C6H5CO−2, C6H5CO2H, H3O+ and OH−) in 0.052 M sodium benzoate.

Express your answers using two significant figures. Enter youranswers numerically separated by commas.

Please show work thank you!

Answer & Explanation Solved by verified expert
3.7 Ratings (447 Votes)
C6H5CO2Na C6H5CO2 salt dissociates completely Kb of benzoate ion 10E14 ka benzoic acid 10E14 65E5 154E10    See Answer
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