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thanx but 112g of Fe ?? where did that come from?? the Mr??
Mr Fe =56
from the equation 3 mols CO produces 2 mols Fe. i.e. 56*2 = 112 g Fe.
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thanx but 112g of Fe ?? where did that come from?? the Mr??
ok thxMr Fe =56
from the equation 3 mols CO produces 2 mols Fe. i.e. 56*2 = 112 g Fe.
No ,The correct answer Is Bwhat is the answer?? is it A?
Organic chemistry mostly. Equilibria too i believe !Hi I have a serious problem. umm apparently i need to have some significant AS level chemistry knowledge for my A2s. I tried solving some past papers and i was faced with many AS level questions, which i couldnt answer . Can any1 tell me which AS level chapters i must focus on to giv my A2s?
Hydrogen bonding is between H and OEthanol is much more soluble in water than EthylEthanoate.
Which statement help to account for this?
A: A hydrogen bond forms between the hydrogen of the -OH group in ethanol and the hydrogen of a water molecule.
B: A hydrogen bond forms between the hydrogen of the -OH group in ethanol and the Oxygen of a water molecule.
C: Ethanol is a polar molecule ,but ethylethanoate is non-polar.
D: Ethanol is able to dissocaite into hydrogen ions and ethoxide ions,but ethylethanoate is not able to dissociate
Please some one answer this question Briefly?
Ethanol is much more soluble in water than EthylEthanoate.
Which statement help to account for this?
A: A hydrogen bond forms between the hydrogen of the -OH group in ethanol and the hydrogen of a water molecule.
B: A hydrogen bond forms between the hydrogen of the -OH group in ethanol and the Oxygen of a water molecule.
C: Ethanol is a polar molecule ,but ethylethanoate is non-polar.
D: Ethanol is able to dissocaite into hydrogen ions and ethoxide ions,but ethylethanoate is not able to dissociate
Please some one answer this question Briefly?
This thread is for Chemistry Alevel.Factorise 24x^2+34x-45 (2 marks)
so why is the answer not C?? if ethanol is polar and ethylethanoate non-polar??Ethylehtanoate is non-polar but ethanol is polar, hence it will be more soluble in a polar solvent such as water. This is due to the presence of hydrogen bonds which are formed between the ethanol and water molecules. The hydrogen atom in -OH which is less electronegative compared to oxygen has a partial positive charge and is able to form a hydrogen bond with the oxygen atom of water which has a partial negative charge due to it's high electronegativity and it's lone pair. So, your answer is B.
The answer can't be A because H atom can't have a hydrogen bond with another hydrogen atom as they are both partially positive.
The question is about :Ethanol is much more soluble in water than EthylEthanoateso why is the answer not C?? if ethanol is polar and ethylethanoate non-polar??
ooo ryt..... its not about IF it is soluble or not.. its about HOW soluble it is.... correct if i'm wrong and thanskThe question is about :Ethanol is much more soluble in water than EthylEthanoate
So we have to give the answer according to the question tht: why the ethanol is more soluble in water than ehtylehthanoate? hope u understand now
Aoa wr wb
This is an A2 qn, if someone could please provide a detailed explanation for it.....
View attachment 22104
JazakAllah khair
littlecloud11 help please?
will help you but can u post the mark scheme to this question too or tell me because i don't want to give u wrong answers at the end :/reposting my question.....help pleaseeee....
See,
reposting my question.....help pleaseeee....
ok this question is testing you if you understand,
Asslamu Alikum, now you have three versions..!!
Soldier313
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