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VladimirAG [237]
3 years ago
11

Find the number of moles of 49.0 grams of H3PO4

Chemistry
1 answer:
Neko [114]3 years ago
4 0

Given parameters:

Mass of H₃PO₄  = 49g

Unknown:

Number of moles  = ?

Solution:

To find the number of moles of a given specie;

   number of moles = \frac{mass}{molar mass}

Molar mass = 3(1) + 31 + 4(16) = 98g/mol

Input the parameters and solve;

       Number of moles  = \frac{49}{98}  = 0.5mole

The number of moles is 0.5mole

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