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The mass of 4.50 x 10²² formula units of CoSO₄ will be 11.57 g

What is formula units ?

The formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.

As 1 mole (i.e, 6.023 x 10²³ molecules) of CoSO₄ weighs 154.99 g

Therefore,

4.50 x 10²² formula units (Molecules) of CoSO₄ weighs

154.99 / 6.023 x 10²³  x  4.50 x 10²²  = 11.57 g CoSO₄

Hence, The mass of 4.50 x 10²² formula units of CoSO₄ will be 11.57 g

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697.455 x [tex]10^{22}[/tex] g/mol is the mass of 4.50 x [tex]10^{22}[/tex] formula units of [tex]COSO_4[/tex].

What is a formula unit?

A formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.

To find the mass of 4.50 x 1022 formula units of [tex]COSO_4[/tex], we need to multiply 4.50 x 1022 with molar mass.

4.50 x [tex]10^{22}[/tex] x 154.99 g/mol

697.455 x [tex]10^{22}[/tex] g/mol

Hence, 697.455 x [tex]10^{22}[/tex] g/mol is the mass of 4.50 x [tex]10^{22}[/tex] formula units of [tex]COSO_4[/tex]

Learn more about  formula unit here:

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