ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (221)
 Inorganic Chemistry interview questions  Inorganic Chemistry Interview Questions (95)
 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (833)
 Physical Chemistry interview questions  Physical Chemistry Interview Questions (57)
 General Chemistry interview questions  General Chemistry Interview Questions (282)
 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (65)
Question
why we are taking 85 ml of concentrated HCl to prepare 1N 
Solution
 Question Submitted By :: Prakash
I also faced this Question!!     Rank Answer Posted By  
 
  Re: why we are taking 85 ml of concentrated HCl to prepare 1N Solution
Answer
# 1
According to this formula

Con(mL) =(M.Wt of Hcl * 100)/ (Specific Gravity of Hcl*
Purity of Hcl)

= 36.5 * 100 / 1.18 * 36 = 85.9mL
 
Is This Answer Correct ?    76 Yes 12 No
K.srinivas
 
  Re: why we are taking 85 ml of concentrated HCl to prepare 1N Solution
Answer
# 2
we should consider the density of the solution :

density= M/V
V=M/D=36.5/1.18=30.93 if purity is 100% but in the HCL ,
purity is 36% only , so

Required volume to prepare 1N solution =30.93*100/36=85ml
 
Is This Answer Correct ?    42 Yes 10 No
Kizar Ahamed
 
 
 
  Re: why we are taking 85 ml of concentrated HCl to prepare 1N Solution
Answer
# 3
Normality of Con. HCl =(Purity of Hcl * 10 * specific
gravity of HCl)/ Eq. wt. of HCl

Where 10 is multiplied to convert in normal soln.(1000 mL)

= (36 * 10 * 1.18)/36.5 = 11.64 N.(N1)

Now,N1V1 = N2V2

v1 = (1 * 1000)/11.64
= 85.9 mL
 
Is This Answer Correct ?    34 Yes 4 No
Alpesh Patel
 
  Re: why we are taking 85 ml of concentrated HCl to prepare 1N Solution
Answer
# 4
FIRST WE ARE FIND OUT LAB MORMALITY=(10 X ASSAY X Wt/ml)/M.W

=(10 X 1.18 X 36)/36.5 = 11.64. THEN M1V1=N2V2 SO,V1=(1X1000)/11.64 = 85.91
 
Is This Answer Correct ?    7 Yes 1 No
Ponnam
 

 
 
 
Other Analytical Chemistry Interview Questions
 
  Question Asked @ Answers
 
What is Impuriteis? Zydus-Cadila 1
what is regration method in method validation , how we can calculate it. Cipla 2
difference between IR& FTIR Cadila 4
what is difference between GC & GC-HS   6
What is the difference between uplc and hplc Hetero 2
What the difference in loss on drying and residue on ignition   1
what is principal of karl ficher instrument! Alkem-Labs 11
why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus? Reddy-Labs 5
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid? Elder 1
What is the purpose of performing dissolution test on routine basis?   2
how can we determine RRF value in HPLC FOR CALCULATION OF IMPURITY ?   4
what is the difference between lod and loq?   3
 
For more Analytical Chemistry Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com