1. Specific Gravity of the substance.
2. Equivalent Weight of the substance.
3. Puirity of the substance.
For eg: Calculation of Hydrochloric Acid Normality:
Sp. Gravity of HCl = 1.18; Equivalent weight = 36.45; Purity of HCl = 35%
Specific Gravity of HCl x Purity of HCl x 1000
Normality of HCl = _____________________________________
Equivalent weight of HCl x 100
1.18 x 35 x 10
Normality of HCl = ______________________
36.45 x 1
1.18 x 35 x 10
Normality of HCl = ________________
36.45
Normality of HCl = 11.3 N
Calculation of Sulphuric Acid Normality:
Sp. Gravity of H2SO4 = 1.84 ; Equivalent weight = 49.04 ; Purity of H2SO4 = 98%
Specific Gravity of H2SO4 x Purity of H2SO4 x 1000
Normality of H2SO4 = _____________________________________
Equivalent weight of H2SO4 x 100
1.84 x 98 x 1000
Normality of H2SO4 = ______________________
49.04 x 100
Normality of H2SO4 = 36.8 N
Calculation of Nitric Acid Normality:
Sp. Gravity of H2SO4 = 1.42; Equivalent weight = 63; Purity of H2SO4 = 70%
Specific Gravity of HNO3 x Purity of HNO3 x 1000
Normality of HNO3 = _____________________________________
Equivalent weight of HNO3 x 100
1.42 x 70 x 1000
Normality of HNO3 = ______________________
63 x 100
Normality of Nitric Acd = 15.8 N
your calculation is wrong.....how you calculate ??? dont make fool...
ReplyDeleteN = wt*1000/E*V where w= v*d
Deletefor liquUid N= DENSITY*PURITY*1000/EQUIVALENT WT*100
DeleteCan anyone tell me the formula of normality calculation for solid substance like NaoH???
DeleteW=NVE/1000..
DeleteN=normality need
V=req volume..
E=equivalent weight.
N = ENV/1000 this formula used for solid chemicals Determination of normality for 1000 ml value
Deleteand this for liquid Normality = Specific gravity X Purity X 1000/Equivalent weight X 100
if want to make N from the known value use formula N1*V1=N2*V2
Actually Normality = Specific gravity X Purity X 1000/Equivalent weight X 100
ReplyDeletethis formula is correct. it gives the correct answer ... previous formula is wrong
DeleteThat exact equation he used here, gives the same result
DeleteNormality=wt×1000/GEwt× vol in ml but this is not considered
DeleteWhy
Delete100 means, in this normality formula
Deleteits a wrong calculation
ReplyDeletewho told u that??????????
Deleteyes it is wrong calculation
ReplyDeleteAbsolutely wrong,,,,,Mr.selvan's formula s right
ReplyDeleteMr.selvan's formula is right.......
ReplyDeleteyes sir i am agree with you
Deletecorrected
ReplyDeletehow we will caculate 0.3 normal solution of hcl
ReplyDeleteMl HCl(32%) to use = ( molec wt × N required)/basicity×%purity×1.18
DeleteSpecific gravity hcl =1.18
26.48mL of 35% Hcl in 1000 ml gives you 0.3 Normal.
ReplyDeletehow i will prepare 2 normality solution of hcl ? who the above things we find?
Deletehow i will prepare 2 normality solution of hcl ? who the above things we find?
DeleteTry formuyla N1V1 = N2V2
Deletewhere N1=Normality of solution u have (Std Normality of Conc. HCL, 11.3N)
N2 = Normality of solution you want to prepare (here, 2N)
V1 = Volume of solution (Here Conc. HCL) u should take which u need to find out and
V2 = Volume of solution you want to prepare.
Try formuyla N1V1 = N2V2
Deletewhere N1=Normality of solution u have (Std Normality of Conc. HCL, 11.3N)
N2 = Normality of solution you want to prepare (here, 2N)
V1 = Volume of solution (Here Conc. HCL) u should take which u need to find out and
V2 = Volume of solution you want to prepare.
What will be taken as v1
DeleteN1*V1 = N2*V2 formula to be used for converting (diluting)solution normality.
ReplyDeletecan anyone tell me the reason why we are multiplying 1000 to get the normality?
ReplyDelete1000 means the volume of 1 litre solution expressed in ml
DeleteWhy we use 1000/100 for what purpose
ReplyDelete1000 is used to express for 1 litre in ml and 100 is taken down from the percentafge purity because 35 % Hcl means 35/100
Deletethank u very much R.Shankar
ReplyDeleteI want to understand polar and non polar drug and solvent
ReplyDeleteI want to understand polar and non polar drug and solvent
ReplyDeleteM/5 H2SO4 ki normality ki valua kitni hogi.
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ReplyDeletepls normality of 0.1HCL is what?
ReplyDeleteHow is this formula derived from N1V1=N2V2
ReplyDeleteNormality calculations based on concentrations are always confusing and challenging to a lot of students taking chemistry but this article has outlined important examples and formulas that will help students to learn and practice the calculations during their free time and they can always hire professional editors to help them by clicking on Proofread my Dissertation.
ReplyDeleteI want to know about traceable standards.
ReplyDeleteHow make 1 Normality Dil.H2SO4(Sp.Gravity) and how can standardize.
ReplyDeleteHow can we know the purity of an unknown acid
ReplyDeleteFrom COA
DeleteHow can we know the purity of an unknown acid
ReplyDeleteHow can make 1 Normality Dil.H2SO4(Sp.Gravity 1.84
ReplyDelete)
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ReplyDeletehi any one tell me the calculation of different normality solution like 0.1 ,0.02 etc from 98% sulfuric acid
ReplyDeleteVolume of acid(h2so4) in ml=0.5435×normality required
DeleteSay .02 N H2SO4 uses
.5435×.02= 1.09 ml of acid to be added to 1000 ml d/water make up vol
Why did we multiply by 1000 and divide by 100?
ReplyDeleteVery nice sir
ReplyDeletethis right formula
ReplyDeleteThis is such nice and useful information for us. I really appreciate this blog to have this kind of knowledge. Also explore Nitric Acid Suppliers
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