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What is the mass of 6.022 \times 10^{23} molecules of H3PO4?

  • Option 1)

    100 g

  • Option 2)

    102 g

  • Option 3)

    99 g

  • Option 4)

    98 g

 

Answers (1)

best_answer

As we learnt in

Mole Concept -

One mole is the amount of a substance that contains as many particles or entities as there are atoms in exactly 12 g (or 0.012 kg) of the 12C isotope.

- wherein

one mole = 6.0221367 X 1023   

 

3H = 3, P = 31, 4O = 64

So H3PO4 = 98 g


Option 1)

100 g

Incorrect

Option 2)

102 g

Incorrect

Option 3)

99 g

Incorrect

Option 4)

98 g

Correct

Posted by

divya.saini

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