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Ch.4 - Reactions in Aqueous Solution

Chapter 4, Problem 34a

State whether each of the following statements is true or false. Justify your answer in each case. (a) NH3 contains no OH- ions, and yet its aqueous solutions are basic

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Hey everyone in this example, we need to choose which statement below is a correct statement. So based on the choices A through D. It looks like we're analyzing an a quick solution of methyl amine and what we should recall is that in our molecule methyl amine according to nitrogen is bonding preference, which is to be bonded to three atoms where it's bonded to the carbon as well as the two hydrogen atoms. And it also has a preference to have a lone pair on itself so that it has a formal charge of zero. We recognize that we have this lone pair here in the molecule. And what this lone pair here signals is that methamphetamine can accept a proton H plus. And we would recall that anything that can accept protons is therefore going to be a bronze stead Lowry base. So the only correct choice to complete this example would be Choice B, which states that the aqueous solution of methyl amine is basic, even though it doesn't have hydroxide ions because it can accept an H. Plus or a proton. So B is our final answer. It's the most correct statement. And if you have any questions, please leave them down below. Otherwise, I will see everyone in the next practice video