Make the latest conjugate acids for the following Bronsted bases: NH

Make the latest conjugate acids for the following Bronsted bases: NH

Question step step one9. The species HdosO, HCO3 – , HSOcuatro – and NH3 can act both as Bronsted acid and base. For each case, give the corresponding conjugate acid and base. Answer:

Question 20. (a) OH – ions (b) F – (c) H + (d) BCI3 Answer: (a) OH – ions can donate an electron pair and act as Lewis base. (b) F – ions can donate an electron pair and act as Lewis base. (a) H + ions can accept an electron pair and act as Lewis base. (b) BCl3 can accept an electron pair since Boron atom is electron deficient. It is a Lewis acid.

Question 21. Predict the acidic, basic or neutral nature of the solutions of the following salts: NaCI, KBr, NaCN, NH4NO3, NaNO2, KF. Answer: NaCN, NaNO2, KF solutions are basic, as they are salts of strong base, weak acid. NaCl, KBr solutions are neutral, as they are salts, of strong acid, strong base. NH4NO3 solution is acidic, as it is a salt of strong acid, weak base.

Question twenty-two. Ionic device of water on 310 K was x ten -fourteen What is the pH of simple drinking water at this heat? Answer:

Concern 23. The newest aqueous provider from glucose will not run electricity whereas when sodium chloride was put into liquids, it conducts electricity. Justify that it declaration. Answer: step 1. Glucose are a low electrolyte whenever it dissolves within the water, there will be no ionisation takes place. If there is no 100 % free ions, it doesn’t perform fuel.

O is acid

2. When sodium chloride try put into liquid, it is entirely ionised to give Na ions and you can Cl – ions. Considering the presence out of ions, they will be odds of electhcal conductance. Because ions is providers regarding electric energy.

step 3. An effective Lewis acidic is an enthusiastic electron deficient molecule and you can with the capacity of recognizing a set of electrons and you may a beneficial Lewis ft try electron steeped molecule and you can able to giving a pair of electrons.

Matter twenty-five. The latest salt away from strong acid and you can solid legs doesn’t experience hydrolysis. Explain. Answer: step 1. In cases like this, none the newest cations nor new anions proceed through hydrolysis. Additionally the provider remains neutral.

2. For example, regarding aqueous service off NaCl, their ions Na + and you will Cl – ions have no tendency to operate having H + otherwise OH – ions off h2o.

Simply because the new you can points of these impulse try NaOH and you can HCI that are completely dissociated. This is why, there’s absolutely no change in the new concentration of W and you can OH – ions and hence the answer will continue to are nevertheless simple.

Question step one. Determine Lowry – Bronsted concept of acid and you will feet. Answer: 1. Based on Lowry-Bronsted idea, an acidic is described as a substance having a propensity to help you contribute a beneficial proton to a different material and you can foot is actually an effective substance that has a tendency to take on a proton off their material.

3. When HCI is dissolved in H2O, HCI donates a proton to H2O. Thus HCI behaves as an acid and H2O is a base. HCI + H2O \(\rightleftharpoons\) H3O + + Cl –

Question 2. Explain the reaction of water with ammonia by proton theory. Answer: 1. When ammonia dissolved in water, it accepts a proton from water. In this case, ammonia (NH3) acts as a base and H2

Classify the following kinds into Lewis acids and Lewis basics and you will let you know how these could play the role of Lewis acid I Lewis foot?

3. The species that remains after the donation of a proton is a base (Base1) and is called the conjugate base of Bronsted acid (Acid1). In other words, chemical species that differ only by a proton are called conjugate acid base pairs Conjugate acid – base pair

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