Question

What is the mass of 1 mole of nitrogen atoms 4 moles of aluminium atoms and 10 moles of sodium sulphate?

Answer 1

1. Nitrogen,

Mole = Given mass/Molar mass
=> 1 mole = Given mass/ 14.0067
=> (1 x 14) g = Given mass
=> Given mass = 14 g

2. Aluminium,

Mole = Given mass/Molar mass
=> 4 moles = Given mass/27
=> (4 x 27) g = Given mass
=> Given mass = 108 g

3. Sodium Sulphate,

Moles = Given mass/Molar mass
=> 10 moles = Given mass/ 142
=> (10 x 142) g = Given mass
=> Given mass = 1420 g


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Answer 2

$<b>$ ☺ Hello mate__ ❤

◾◾here is your answer...

Approach to solving Question;- 1st we find mass of 1 mole ( it is standard value) . Than multiply this by given no. Of moles.

(a) The mass of 1 mole of nitrogen atoms is 14g.

(b) The mass of 4 moles of Al

=4 × 27 g

= 108g

(c) The mass of 10 moles of Na2SO3

=10 × [2 × 23 + 32 + 3 × 16]g

= 10 × 126g

= 1260g

I hope, this will help you.

Thank you______❤

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