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Electron Gain Enthalpy

Moles of KCio...

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Moles of KCio, required for producing sufficient O2to react with 1 mole of aluminium will be (Molarmass of KCIO 122.5)(1) 2 mole(2) 1 mole5(4) mole2(3) mole2

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K C l O_{4}

is obtained from the following sequence of reactions:

C l_{2} + 2 K O H \to K C l + K C l O + H_{2} O

3 K C l O \to 2 K C l + K C l O_{3}

4 K C l O_{3} \to K C l + 3 K C l O_{4}

.

The correct statement among the following is/are

K C l O_{3}

is heated in the presence of

M n O_{2}

. The produced oxygen is used to react with aluminium. Find the number of moles of aluminium oxide formed.

Q. One mole of potassium chlorate

K C l O_{3}

is thermally decomposed and excess of aluminium is allowed to react with gaseous product. How many mole(s) of aluminium oxide

A l_{2} O_{3}

Q. Aluminium reacts with oxygen to form aluminium oxide. How many moles of oxygen required to react completely with

0.5

moles of aliminium?

C l_{2} + 2 K O H \to K C l + K C l O + H_{2} O

3 K C l O \to 2 K C l + K C l O_{3}

4 K C l O_{3} \to K C l + 3 K C l O_{4}

2 moles of chlorine gas reacted with an excess of potassium hydroxide and 50 g of potassium perchlorate was obtained. Calculate the percentage yield of perchlorate in the reaction.
Molar mass of potassium perchlorate = 138.5 g/mol

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