VPB 112: General Veterinary Biochemistry (1+1)

Observation, calculation, result

OBSERVATION, CALCULATION AND RESULT

Observation

(COOH)₂ vs. NaOH (Indicator: Phenolphthalein)

SI.No.	Volume of Standard (COOH)2 in ml	Burette Reading ml		Volume of NaOH Consumed in ml	Concordant Value in ml
		Initial	Final

Calculation

By Normality equation, V₁N₁ = V₂N₂

• N₁ = Normality of (COOH)₂ = 0.1 N
• V₁ = Volume of the (COOH)₂ = 5 ml
• N₂ = Normality of NaOH = ? (Unknown)
• V₂ = Volume of NaOH (from observation)

Substituting the values in the above equation,

We get,

Result

The strength of NaOH solution prepared is ____________ N.