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  • 14-01-2021
  • Chemistry
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40. What is the mass of 3 moles of H 2 O

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quasarJose
quasarJose quasarJose
  • 15-01-2021

Answer:

54g

Explanation:

Given parameters:

Number of moles of H₂O  = 3 moles

Unknown:

mass of water  = ?

Solution:

To solve this problem, we use the expression below:

         mass  = number of moles x molar mass

Molar mass of H₂O  = 2(1)  + 16  = 18g/mol

Mass of water  = 3 x 18  = 54g

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