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Ionic Bond

Q16. A compou...

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Q16. A compound has following composition Na 14,13%, S = 9.978&, O=69.5% and H 6.22% Calculatemolecular fomula of compound assuming that whole hydrogen in the compound is present as water ofcrystallis ation. (Molecular mass of compound is 322)

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Q. A compound, on analysis, gave the following percentage composition :

N a = 14.31 %, S = 9.97 %, H = 6.22 %, O = 69.5 %

What would be the molecular formula of the compound assuming that all the hydrogen in the compound is reset in combination with oxygen as water of crystallisation. Molecular weight of the compound is

322

.

Q. A compound on analysis gave the following percentage composition.

Na—14.31 %	S—9.97 %
H—6.22 %	O—69.5 %.

Calculate the molecular formula of the compound, if all the hydrogen present in the compound is combined with oxygen to form water of crystallization. Molecular mass of compound is 322.
[Na = 23, S = 32, H = 1, O = 16]

Q. A compound has the following composition by weight:

N a = 18.60 %, S = 25.80 %, H = 4.02 %

O = 51.58 %

. Assuming that all the hydrogen atoms in the compound are part of water of crystallization, the correct molecular formula of the compound is:

Q. A compound has the following composition: Na=18.6%, S=25.8%, H=4.03% and O=51.58%. Calculate the molecular formula of the crystalline salt assuming that all the hydrogen in the compound is in combination with the oxygen as water of crystallisation. Molecular weight of the compound is 248.

Q. A compound has the following % composition.

Z n =

S =

O =

H =

4.88%. Its relative molecular mass is 287 g. Calculate its molecular formula assuming that all the hydrogen in the compound is present in combination with oxygen as a water of crystallization.
[

Z n = 65, S = 32, O = 16, H = 1

]

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