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Develop the conjugate acids for the next Bronsted bases: NH

Develop the conjugate acids for the next Bronsted bases: NH

Question step one9. The species HdosO, HCOstep step step three – , 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 22. Ionic equipment from liquid on 310 K was x ten -fourteen What’s the pH away from natural h2o at that temperature? Answer:

Question 23. The fresh aqueous service out-of glucose doesn’t carry out stamina while when salt chloride was put into liquids, it performs strength. Validate that it declaration. Answer: 1. Sugar try a non electrolyte just in case it dissolves in the water, there will be no ionisation happens. When there is no totally free ions, it generally does not conduct energy.

O was acidic

dos. Whenever salt chloride was put in liquids, it is totally ionised provide Na ions and you can Cl – ions. Because of the presence out-of ions, they’ll certainly be odds of electhcal conductance. As the ions was companies from household current.

3. Good Lewis acid is actually a keen electron deficient molecule and you will with the capacity of taking a pair of electrons and you can an effective Lewis base are electron steeped molecule and you will with the capacity of donating a pair of electrons.

Question 25. This new salt out-of strong acid and you will good foot will not go through hydrolysis. Irving escort service Explain. Answer: 1. In this case, neither the latest cations nor the new anions undergo hydrolysis. And the services remains simple.

2. Eg, from the aqueous solution from NaCl, their ions Na + and you can Cl – ions have no tendency to behave that have H + or OH – ions away from h2o.

It is because the newest you’ll circumstances of these reaction is NaOH and HCI which can be entirely dissociated. Consequently, there isn’t any improvement in the fresh concentration of W and OH – ions and hence the clear answer continues to are basic.

Question step one. Explain Lowry – Bronsted theory out of acid and you will foot. Answer: step one. Centered on Lowry-Bronsted idea, an acid is defined as a material having a tendency so you can contribute a beneficial proton to a different compound and you will ft try an effective compound who’s got a tendency to accept a beneficial proton from other 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

Categorize next types into Lewis acids and Lewis basics and you may let you know exactly how these can act as Lewis acidic We Lewis base?

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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