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Basile [38]
3 years ago
5

How many moles of barium(Ba) do we have if we have 1,000g?

Chemistry
1 answer:
umka21 [38]3 years ago
7 0

Answer:

7.28 mol

Explanation:

First find the Molar mass of Ba in the periodic table

which is 137.3

the unit of molar mass is g/mol

1000gx\frac{1 mol }{137.3 g}

7.28 mol

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Answer : The Lewis-dot structure of RbIO_2  is shown below.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, RbIO_2

As we know that rubidium has '1' valence electrons, iodine has '7' valence electrons and oxygen has '6' valence electrons.

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As we know that RbIO_2  is an ionic compound because it is formed by the transfer of electron takes place from metal to non-metal element.

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The whole question can be found in the file attached.

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