Multiple Choice
When values of Ka are small (e.g., 1 10-5) and concentrations of weak acids [HA] are relatively large (e.g., 0.10 M) , the hydronium ion concentration of the solution can be calculated using which expression?
A) [H+] = Ka
B) [H+] = Ka[HA]
C) ![When values of K<sub>a</sub> are small (e.g., 1 <font face= symbol ></font> 10<sup>-</sup><sup>5</sup>) and concentrations of weak acids [HA] are relatively large (e.g., 0.10 M) , the hydronium ion concentration of the solution can be calculated using which expression? A) [H<sup>+</sup>] = K<sub>a</sub> B) [H<sup>+</sup>] = K<sub>a</sub>[HA] C) D) [H<sup>+</sup>] = K<sub>a</sub>K<sub>b</sub>[HA] E) [H<sup>+</sup>] = K<sub>a</sub>[HA]/[A<sup>-</sup>]](https://d2lvgg3v3hfg70.cloudfront.net/TB3833/11eaae02_088c_47ad_95d8_b93197e8ee25_TB3833_11.jpg)
D) [H+] = KaKb[HA]
E) [H+] = Ka[HA]/[A-]
Correct Answer:
Verified
Correct Answer:
Verified
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