Solved

Pentothal Is a Barbiturate Used (As Its Sodium Salt) as a Short-Acting

Question 18

Multiple Choice

Pentothal is a barbiturate used (as its sodium salt) as a short-acting anesthetic. Pentothal is a weak acid with a dissociation constant Ka = 4 × 10−8 M. Which one of the statements best describes the dissociation state of pentothal in the blood, which has a pH of 7.4?
Pentothal is a barbiturate used (as its sodium salt) as a short-acting anesthetic. Pentothal is a weak acid with a dissociation constant K<sub>a</sub> = 4 × 10<sup>−8</sup> M. Which one of the statements best describes the dissociation state of pentothal in the blood, which has a pH of 7.4? A) more than 90% dissociated B) between 60% and 90% dissociated C) about half dissociated D) between 10% and 40% dissociated E) less than 10% dissociated


A) more than 90% dissociated
B) between 60% and 90% dissociated
C) about half dissociated
D) between 10% and 40% dissociated
E) less than 10% dissociated

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q13: Consider the Brønsted acid-base reaction:<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBMC1048/.jpg"

Q14: In this acid-base equilibrium, the pK<sub>a</sub>

Q15: Select the correct statement about this

Q16: Draw curved arrows and give the products

Q17: Select the equilibrium that lies farthest to

Q19: Pivalic acid, which has the structure (CH<sub>3</sub>)<sub>3</sub>C-CO<sub>2</sub>H,

Q20: In the reaction, CH<sub>3</sub>O<sup>−</sup> acts as a

Q21: Consider this Brønsted acid-base equilibrium:<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBMC1048/.jpg"

Q22: Complete the reaction and draw the curved-arrow

Q23: Equal amount of compounds A and B