Identify the stronger base in each of the following pairs.

Explain your reasoning.

(d) HS^- or Br^-

Video transcript

Welcome back, everyone. To another video, determine the weaker base between the two. Explain why hydroxide or chloride to answer which one is the weaker base. Let's compare the conjugate acid strength. So if we add one hydrogen to each base, we obtain hoh, which is essentially HTO that's the conjugate acid of hydroxide and HCL which is hydrochloric acid. And this is the conjugate acid of the chloride anion. Now, between the two, we can immediately say that HCL is a strong acid because it essentially belongs to the list of seven strong assets that we know. And essentially for water, we can just say that that it is capable of donating a proton, right? But it is not a strong asset. So now if HCL is a strong acid, it's essentially stronger than water, it also results in a weaker conjugate base because the conjugate base strength is inversely proportional to the acid strength. A stronger acid would result in a weaker conjugate base, meaning we're just flipping our conclusion. Therefore, oh minus would be a strong base and cl minus would be a weak base. Our answer would be is weaker because HC yes, a stronger acid then water. That's our final conclusion. Let's label our final answer and thank you for watching.