When Values of Ka Are Small (E 10-5)and Concentrations of Weak Acids [HA] Are Relatively Large (E
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) [H+] = (Ka[HA]) ![When values of K<sub>a</sub> are small (e.g.,1 \times 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) [H<sup>+</sup>] = (K<sub>a</sub>[HA]) 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/TB6561/11eaa8e1_357e_02df_b44f_53786f83946e_TB6561_11_TB6561_11.jpg)
D) [H+] = KaKb[HA]
E) [H+] = Ka[HA]/[A-]
Correct Answer:
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