Join NOW to get access to exclusive study material for best results
Expert Answer
In terms of weight, Normality of the substance can be expressed as:
Measurements in normality can change with the change in temperature because solutions expand or contract accordingly.
Example 1.
36.5 grams of hydrochloric acid (HCl) is a 1 N (one normal) solution of HCl.
A normal is one gram equivalent of a solute per liter of solution. Since hydrochloric acid is a strong acid that dissociates completely in water, a 1 N solution of HCl would also be 1 N for H+ or Cl-ions for acid-base reactions.
Example 2 Molecular wt of K2Cr2O7 is 294.148 gm. What is its normality in 1000 ml solution?
Valency = 6 (because of Cr -6)
EW = 294.148/6 = 49.025
N = 49.025/1000 ml = 0.049025.
ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT
