Acids and bases | November 2022 | Question 7 | Mlungisi Nkosi

Пікірлер: 10

  • @_https.Plisto
    @_https.Plisto10 ай бұрын

    Sir if this was a neutralization how is it possible that NaOH still had moles left

  • @MlungisiNkosi

    @MlungisiNkosi

    10 ай бұрын

    Great question… So you’ll see that it isn’t titration where the acid and base completely neutralise each other. In this case the base partially neutralised…

  • @_https.Plisto

    @_https.Plisto

    10 ай бұрын

    Ohh okay cool

  • @calvinbafshoe2626
    @calvinbafshoe2626 Жыл бұрын

    When solving this question of calculating concentration of hydroxide ions i though of ionization of water Kw however i was kinda stuck cause i wasn't told that this is happening at a temperature of 25 degrees. Should we assume?

  • @MlungisiNkosi

    @MlungisiNkosi

    Жыл бұрын

    When in doubt, it’s safe to assume otherwise we reach a stalemate. However I do admit that examiners must not leave out such crucial details

  • @mohamadhussainkhan1007
    @mohamadhussainkhan1007 Жыл бұрын

    Hi.Can you pls do the KZN prelim acids and Bases for 2022

  • @MlungisiNkosi

    @MlungisiNkosi

    Жыл бұрын

    Yikes!!! I saw that one…

  • @mohamadhussainkhan1007

    @mohamadhussainkhan1007

    Жыл бұрын

    @@MlungisiNkosiYeah.It was really hard.

  • @user-hz8bl8po2h
    @user-hz8bl8po2h11 ай бұрын

    Sir from your 7.2.2 question you used two methods but your final answers are not the same. the other one is 0.0025 and another one is 0.025.

  • @MlungisiNkosi

    @MlungisiNkosi

    11 ай бұрын

    I made a mistake