Related Questions:
Thursday, October 1, 2020
What are the Antichlor ?
An antichlor is a substance used to decompose residual hypochlorite or chlorine after use of chlorine based bleaching , in order to prevent ongoing reactions .example s of antichlor – Sodiumbisulphite (NaHSO3), Pottassiumbisulphite (KHSO3) , Sodiummetasulphite (Na2S2O3), Sodiumthiosulphate (Na2S2O3) and hydrogen peroxide (H2O2).
If trace of chlorine are not remove from pulp used for paper manufacturing,then on the long standing it weaken the paper and makes it yellowish.
Related topics:
Mole concept and Stiochiometry
MOLE-MOLE ANALYSIS
CONCEPT OF LIMITING REAGENTS
GRAVIMETRY-WEIGHT WEIGHT ANALYSIS
OLEUM AND ITS PERCENTAGE(%) LABBELING
PRINCIPLE OF ATOM CONSERVATION (PAOC)
GRAVIMETRY-WEIGHT WEIGHT ANALYSIS
EUDIOMETRY-VOLUME VOLUME ANALYSIS OF GAS
DEGREE OF HARDNESS OF HARD WATER
PERCENTAGE YIELD OF CHEMICAL REACTION:
PERCENTAGE PURITY OF GIVEN SAMPLE:
PERCENTAGE (%) AVAILABLE CHLORINE IN BLEACHING POWDER:
If 4 gm of bleaching powder dissolved to give 100 ml solution 25 ml of it react with excess of CH3COOH and KI .The Iodine liberation required 10 ml of 0.125 N Hypo solutions. Calculate % of available chlorine in the sample.
Available chlorine in sample of bleaching powder can be calculated as per the following reactions.
How to distinguise between " Extensive and Intensive" thermodynamic properties?
Extensive and Intensive properties:
1:
Extensive properties are additive but intensive properties are non additive.
2: Ratio
of two extensive property gives an intensive property.
3: An extensive property can be converted into intensive property by defining it per mole/ per gram/ per liter
Related Questions:
What are the "State functions or State variables" ?
What are the Mathmatical conditions for state functions or state variables?
What are the path function in thermodynamics ?
What are the path function in thermodynamics ?
What are properties of "thermodynamic system"?
The state of a system is defined by a particular set of its measurable parameters called properties, by which a system can be described for example, Temperature (T), Pressure (P) and volume (V) defines the thermodynamics state of the system.
Intensive property: After specifying the parameter of the
system, when system is divided in parts the parameter whose value remains
unchanged due to division is known as Intensive parameter or properties. the
value of intensive is independent of the
mass (size or quantity) of the system.
Refractive index
Surface tension
Viscosity
Molar Mass
Density
Free energy per mole
Specific heat capacity
Molar heat capacity
Free energy per mole
Pressure (P)
Temperature (T)
Boiling point
freezing
point etc
Molar
enthalpy
Molar
conductivity
Equivalent
conductivity
Molarity,
Normality, Mole fraction,%w/w,%V/V
EMF of
cell
Extensive
property: the parameter whose value change on division known as extensive properties and
these are depends on the mass (size, quantity) of the system.
Volume
Number of moles
Mass
Mole
Free Energy (G)
Entropy (S)
Enthalpy (H)
Internal energy (E&U)
Heat capacity
K.E.
P.E.
Gibbs free energy (G)
Resistance
Conductance
Extensive and Intensive properties:
1:
Extensive properties are additive but intensive properties are non additive.
2: Ratio
of two extensive property gives an intensive property.
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