Inniting MnO(2) in air converts it quant...

Inniting `MnO_(2)` in air converts it quantitctively to `Mn_(3)O_(4)`. A sample of pyrolusite is of the following composition. `MnO_(2)=80%` and othe inert constituents =15% and rest bearing `H_(2)O`. The sample is ignited to constant weight. What is the % of Mn is the igrited sample.

0.246

0.37

0.5524

0.7405

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

STOICHIOMETRY
NARENDRA AWASTHI|Exercise Level 2 (Q.31 To Q.35)|5 Videos
STOICHIOMETRY
NARENDRA AWASTHI|Exercise Level 3 - Passage|18 Videos
STOICHIOMETRY
NARENDRA AWASTHI|Exercise Level 1 (Q.181 To Q.200)|20 Videos
SOLID STATE
NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|1 Videos
THERMODYNAMICS
NARENDRA AWASTHI|Exercise Level 3 - Match The Column|2 Videos

Similar Questions

Explore conceptually related problems

10 g sample of H_(2)O_(2) just decolorised 100 ml of 0.1 M KMnO_(4) in acidic medium % by mass of H_(2)O_(2) in the sample is

What is the change in the oxidation state of Mn in the reaction of MnO_(4)^(-) with H_(2)O_(2) in acidic medium?

The pH of a sample of H_(2) SO_(4) is 1.3979 . The percentage of the solution is 73.5 % (w/w) , the density of the solution is

A sample of gascous hydrocarbon occupying 11.2 lit at NTP. When completely burnt in air produced 22 g CO_(2) and 18 g H_(2)O . Calculate the weight of hydrocarbon taken (in grams)?

What is the change in the oxidation state of Mn, in the reaction of MnO_(4)^(-) with H_(2)O_(2) in acidic medium?

H_(2)O_(2(aq)) decomposes to H_(2)O_((l))and O_(2(g)) in a first reaction w.r.t. H_(2)O_(2). The rate constant is k=1.06 xx10^(-3) "min" ^(-1). How long it will take 15% of the sample of defcompose ?

A sample of H_(2)O_(2) is x % by mass. If x ml of KMnO_(4) are required to oxidize 1 gm of this H_(2)O_(2) sample, calculate the normality of KMnO_(4) solution.

A sample of calcium carbonate (CaCO_(3)) has the following percentage composition : Ca = 40 % C = 12 % , O = 48 % . If the law of constant proportions is true , then the weight of calcium in 4 g of a sample of calcium carbonate from another source will be

NARENDRA AWASTHI-STOICHIOMETRY-Level 2 (Q.1 To Q.30)

Nitric acid can be produced from NH(3) in three step process I) 4NH(...
Text Solution
|
1 M NaOH solution was slowly added in to 1000 mL of 183.75 g impure H(...
Text Solution
|
Inniting MnO(2) in air converts it quantitctively to Mn(3)O(4). A samp...
Text Solution
|
A 1.0g sample of a pure organic compound cotaining chlorine is fused w...
Text Solution
|
A 0.6gm sample consisting of only CaC(2)O(4) and MgC(2)O(4) is heated ...
Text Solution
|
A metal M forms the sulphate M(2)(SO(4))(3). A 0.596 gram sample of t...
Text Solution
|
Urea(H(2)NCONH(2)) is manufactured by passing CO(2)(g) through ammonia...
Text Solution
|
11.6 g of an organic compound having formula (C(n)H(2n+2)) is burnt in...
Text Solution
|
H2O2 + 2KI overset("40% yield")to I2 + 2KOH H2O2 + 2KMnO4 + 3H2SO...
Text Solution
|
SO(2)Cl(2) (sulphuryl chloride ) reacts with water to given a mixture ...
Text Solution
|
5 g sample contain only Na(2)CO(3) and Na(2)SO(4) . This sample is dis...
Text Solution
|
20 mL of 0.2 M NaOH(aq) solution is mixed with 35 mL of this 0.1 ML N...
Text Solution
|
A silver coin weighing 11.34 g was dissolved in nitric acid When sodiu...
Text Solution
|
Two elements X (at.mass 16) ard Y (at. mass 14) combine to form compou...
Text Solution
|
The conversion of oxygen to ozone occurs to the extent of 15% only. Th...
Text Solution
|
RH(2) (ion exchange resin) can replace Ca^(2+) ions in hard water as R...
Text Solution
|
100 cm^(3) of a solution of an acid (Molar mass =98) containing 29.4 g...
Text Solution
|
20 mL of 0.1 M solution of compound NaCO(3).NaHCO(3).2H(2)O is titrate...
Text Solution
|
A sample containing HAsO(2) (mol. Mass=108) and weighing 3.78 g is dis...
Text Solution
|
A mixture of FeO and Fe(2)O(3) is completely reacted with 100 mL of 0...
Text Solution
|