Ch2/topic 1

Question 1

Primary standars

Answer 1

Thoes chemical reagent have high percent purity ,stability toward air,high Mr ,having medium cost and readily availability

Question 2

Features of primary standarda

Answer 2

1. high percent purity
2. stability toward air
3. high molecular mass
4. readily solubility in the solvent
5. medium cost
6. readily availability

Question 3

KHP

Answer 3

Potassium hydrogen phthalate

Standardization of NaOH

Question 4

Na2CO3

Answer 4

HCl

Question 5

Na2C2O4

Answer 5

KMnO4

Question 6

Zn/Mg

Answer 6

EDTA

Question 7

Titration

Answer 7

laboratory method used to determine the unknown concentrations of samples

Question 8

Standardization

Answer 8

a laboratory method used to determine the exact concentration of a prepared solution

Question 9

Secondary Standard Solution

Answer 9

is that solution used for further standardization of solution having not exact known concentration

Question 10

Volumetric glass

Answer 10

Measure volume of liquid

Question 11

Volumetric flask

Answer 11

Dilute original sampleto know the volume

Question 12

Pipettes

Answer 12

Transfer known volume of the solution

Question 13

Buretres

Answer 13

Add know volume of titrant and have scale on the sides

Question 14

Equivalence point

Answer 14

The point at which all the amount of analyte is consumed and the amount of standard solution becomes equal to the amount of analyte solution.

Question 15

End point

Answer 15

The point at which the indicators give color change.

Question 16

Types of titrations

Answer 16

· Acid-base titration 
Redox titration •
Complexometric titration
 Precipitation titration 
Back titration