cause they say that each mole produces H+ ions in the questionfishcook explains it in a good way,
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cause they say that each mole produces H+ ions in the questionfishcook explains it in a good way,
hmm ok actually its for 2000 so forge titi think you find it out by titration, using an indicator and comparing the volumes of acid used to neutralize lets say 25cm3 of NaOH
the one that uses less acid is H2Y so the one that uses more is HY... Im not sure though.
i dun have link! xtreem papers dsnt havesorry, link plz?
5n i think fishcook gave d ryt 1.i dun have link! xtreem papers dsnt have
plzzz explain how did u doMg + 2H+ > Mg+2 + H2
mg is in metal state, so no charge. h is in acid so +(coz H is always +ve), in H2SO4, so 2 hydrogen atoms, so 2H+ ionsplzzz explain how did u do
really, no, y do dat?
lyk acid donates H+ ions, rite? plz reply asap, n thx
Alright..d- the formula of an acid is either of the type HY or H2Y.How could you find out which one is correct by using Aq.solutions of the acid and of sodium hydroxide. Assume that both solutions have the same concentration, 0.1 mol/dm3
please help!
plzzz explain how did u do
oyee, 2NaOH +H2SO4-->Na2SO4 + 2H2O, i thinkAlright..
HY-monoprotic(HCL, HNO3)
H2Y-diprotic (H2CO3,H2SO4)
By Titration
NaOH +HCl -->NaCl +H2O
Ratio :1:1
2NaOH +H2SO4-->NaSO4 +H2O
Ratio :2:1
Prepare the same conc of NaOH as the unknown acid
pipette out 25cm3 of unknown acid and add a few drops of suitable indicator
Fill burette with NaOH solution till zero Mark and run the burette dropwise until indicator just changes colour
record the volume of NaOH used
If the volume ratio is 1:1 then the acid is HY type else H2Y type
what i mean that there is should be double bonded C
C=C
(generally in esters, i hope you got what i mean)
no the double bond is C=O because C=C is alkenes
yea sorry forgot to balanceoyee, 2NaOH +H2SO4-->Na2SO4 + 2H2O, i think
im getting all wrong notions?
61?can anyone help me with may june 2009 paper 61 question 5 b?
no no thnx i got it but y in the product thingy H has no charge Mg + 2H+ > Mg+2 + H2mg is in metal state, so no charge. h is in acid so +(coz H is always +ve), in H2SO4, so 2 hydrogen atoms, so 2H+ ions
im a bad xplainer, so sorry if u didnt get it
subject?yes!
i got u like i knw how to do thisok
the normal equation is:
Mg + H2SO4 -> MgSO4 + H2
anything (aq) must be written in ion format, anything else SAME
Mg + H+ + SO4-2 -> Mg+2 + SO4- + H2
delete ions that are same in the reactants and the products sides (in this case only sulphate, note that Mg is solid and Mg+2 is ion so dont delete, and H2 is gas and H+ is ion so dont delete)
Mg + H+ -> Mg+2 + H2
Balance
Mg + 2H+ -> Mg+2 + H2
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