Home
Class 11
CHEMISTRY
The equivalent weight of potash alum (...

The equivalent weight of potash alum
`(K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O)` is

A

`M`

B

`(M)/(2)`

C

`(M)/(6)`

D

`(M)/(8)`

Text Solution

Verified by Experts

The correct Answer is:
B
Potash alum is a double salt.
`Total+"ve charge"=Total-"ve charge"`
`K_(2)^(2+)SO_(4)^(2-).Al_(2)^(+6)(SO_(4))_(3)^(-2xx3).24H_(2)O`
`Total+"ve charge"=8`
`Total-"ve-charge"=8`
`:. Ew=(M)/(8)`
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    CENGAGE CHEMISTRY|Exercise Ex 2.1|10 Videos

  • REDOX REACTIONS

    CENGAGE CHEMISTRY|Exercise Ex 2.2|18 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Assertion Reasoning Type|5 Videos

  • S-BLOCK GROUP 1 - ALKALI METALS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|8 Videos

Similar Questions

Explore conceptually related problems

Find the equivalent weight of (a) CaCO_(3) (b) K_(2)SO_(4). Al_(2)(SO_(4))_(3). 24H_(2)O (Mol mass = M)

Given the ionic equivalent conductivities for the following ions : lambda^(@)._(eq)K^(o+)=73.5cm^(2)ohm^(-1)eq^(-1) lambda^(@)._(eq)Al^(3+)=149cm^(2)ohm^(-1)eq^(-1) lambda^(@)._(eq)SO_(4)^(2-)=85.8cm^(2)ohm^(-1)eq^(-1) The wedge_(eq)^(@) for potash alum (K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O) is :

What is the relation between molar conductivity (wedge_(m)) and equivalent conductivity (wedge_(eq)) of potash alum [K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H _(2)O ?

The weight (in gram) of pure potash alum [K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O] which contains 0.64 kg oxygen. (Atomic weight of K = 39, S = 32, Al = 27 )

Find the equivalent weight of (a) CaCO_(3) (b) K_(2)SO_(4).Al(SO_(4))_(3).24H_(2)O (Mol. Mass = M)

Calculate the percentage composition of: Alumina (Al_(2) O_(3) , potassium oxide (K_(2) O) , and silcia (SiO_(2)) in the sample of clay (Al_(2) O_(3). K_(2) O. 6SiO_(2)) . b. Potassium sulphate (K_(2) SO_(4)) . Aluminium sulphate, and water of crystallisation in the simple of potash alum, (K_(2) SO_(4). Al_(2) (SO_(4))_(3). 24H_(2) O) .