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Edexcel IAL Chemistry Unit 4, January 12th watch

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    • Thread Starter
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    Guys, whoever is doing the exam on the 12th, please post any resources for revision. Thanks.

    Goodluck guys
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    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.


    Just quoting in Danny Dorito so she can move the thread if needed :wizard:
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    (Original post by Danny Dorito)
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    Hi guys! What do you think about the exam?
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    (Original post by Yirikcemyirik)
    Hi guys! What do you think about the exam?
    It was amazing.. Btw, what did you guys get for the mass of sodium lactate?
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    (Original post by Matt_levar)
    It was amazing.. Btw, what did you guys get for the mass of sodium lactate?
    It was 23 something
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    What about timing? I had problems i would need 20 more minutes to finish it completely.
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    Unit 5 will be hardddddddd
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    (Original post by Yirikcemyirik)
    What about timing? I had problems i would need 20 more minutes to finish it completely.
    Timing was alright in my case. Do you remember the key details of the question where you had to find the mass of sodium lactate?
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    (Original post by Matt_levar)
    Timing was alright in my case. Do you remember the key details of the question where you had to find the mass of sodium lactate?
    No i just remember that i got 23 g for it
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    same i got 23. smthn grams..
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    i used the buffer formula to calculate the moles of salt first. and then found mass using molar mass multiplied by moles. i got 5.29g!!!! arrrghhhh!!! the question was 4 marks. How much mark could be deducted for this?
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    Enthalpy of formation of chorine is 0 not 121.6, urghh im ****ing stupid
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    i also used 121.6!!!!!!!!!!! arghhhhhhh! who can remember so many thingss all at once!-_-
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    btw guys!! that mass calculation was exactly like this one right? #20Name:  15995509_1368034069907417_675832217_n (1).jpg
Views: 126
Size:  66.1 KB
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    (Original post by Propo)
    btw guys!! that mass calculation was exactly like this one right? #20Name:  15995509_1368034069907417_675832217_n (1).jpg
Views: 126
Size:  66.1 KB

    What's the answer? I got 35.58g . also the answer for 19
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    (Original post by Yomama9)
    What's the answer? I got 35.58g . also the answer for 19
    i find out it is 117 cm3 for question 19 and the same answer of question 20.
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    Am I right?
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    (Original post by tino083)
    i find out it is 117 cm3 for question 19 and the same answer of question 20.
    Idk the correct answer for q19 but I got 67cm^3 ... :/ wait nm I'm wrong. One of my m8sgot 21.3cm^3..
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    (Original post by Yomama9)
    Idk the correct answer for q19 but I got 67cm^3 ... :/ wait nm I'm wrong. One of my m8sgot 21.3cm^3..
    I did IT again. 117cm^3. I'm sure its right
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    Really? Thx mate.
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Updated: January 12, 2018
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