Edexcel IAL Chemistry Unit 2 (Old Syllabus) 22 May 2019

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#1
Hello everyone, how was the exam. For me the ionic equations and other equations was the hard stuff only but overall the exam was easy for me. Let's discuss Evryone!
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2 years ago
#2
It was so hard , i wanted to cry
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#3
(Original post by razan43)
It was so hard , i wanted to cry
Yeah I agree for some mcqs and equations. But apart from these the theory questions were easy. These questions just needed common knowledge, like the iodine and water one or magnesium flame color etc
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2 years ago
#4
What about the MgO and MgOH questions? I didnt know how to solve them at all
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#5
(Original post by razan43)
What about the MgO and MgOH questions? I didnt know how to solve them at all
What was difficult in that question??
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2 years ago
#6
How to calculate the number of moles and stuff , honesty i forgot the questions
(Original post by usman200186)
What was difficult in that question??
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#7
(Original post by razan43)
How to calculate the number of moles and stuff , honesty i forgot the questions
Use concentration and mean volume to find moles of hcl. Then use mole ratio, it was 1:2 i think. Then multiply moles of hcl by 1/2 to find moles of MgO.

To find mass of absorbed water, MgO and water had 1:1 so multiply moles of Mgo × 18 to find mass of absorbed water.

To find mass of pure Mg(OH)2, add the mass of MgO and water....

These were basic calculations of moles...
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2 years ago
#8
Apart from the titration question what were the answers for the other one ?
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#9
(Original post by carolinaaa)
Apart from the titration question what were the answers for the other one ?
I don't remember but those were 3× powers of 10^-3 or -4.
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2 years ago
#10
(Original post by usman200186)
I don't remember but those were 3× powers of 10^-3 or -4.
Oh ok idk , anyone remembers answers ? For the moles of stones of iodine I just Kouriles thenppm value with the 1000kg divided by 1 million and then divided the mass by 2 atoms
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#11
(Original post by carolinaaa)
Oh ok idk , anyone remembers answers ? For the moles of stones of iodine I just Kouriles thenppm value with the 1000kg divided by 1 million and then divided the mass by 2 atoms
Yeah its correct, but why you used 2 atoms? just divide it Mr of iodine (126.9)
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2 years ago
#12
(Original post by usman200186)
Yeah its correct, but why you used 2 atoms? just divide it Mr of iodine (126.9)
Iodine has 2 atoms
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#13
Anyone remembers the answers for separating funnel in last question?
In the first part I wrote upper layer as colorless and lower as dark purple
In the next one I wrote upper as lighter purple and lower as purple
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2 years ago
#14
(Original post by usman200186)
Anyone remembers the answers for separating funnel in last question?
In the first part I wrote upper layer as colorless and lower as dark purple
In the next one I wrote upper as lighter purple and lower as purple
u did d new syllabus?
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#15
(Original post by Archi93)
u did d new syllabus?
I know this same question was in new syllabus cuz my friend told me. But I did the old one
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2 years ago
#16
anybody did the new syllabus?
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2 years ago
#17
Wait... we had to write the colours...? 😟😟😟
I just wrote aqueous layer and the other. GOD WHY DO I DO THIS?
(Original post by usman200186)
Anyone remembers the answers for separating funnel in last question?
In the first part I wrote upper layer as colorless and lower as dark purple
In the next one I wrote upper as lighter purple and lower as purple
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#18
(Original post by Sara aliyeva)
Wait... we had to write the colours...? 😟😟😟
I just wrote aqueous layer and the other. GOD WHY DO I DO THIS?
They Literally wrote Colors in bold😂 in the question
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2 years ago
#19
(Original post by Archi93)
anybody did the new syllabus?
me
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#20
(Original post by Archi93)
anybody did the new syllabus?
Make a new thread for new syllabus bro!?
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