jkaurendoPa4b2 jkaurendoPa4b2
  • 19-05-2017
  • Chemistry
contestada

What is the total number of moles present in a 52.0 gram sample of nan3?

Respuesta :

ahfargl
ahfargl ahfargl
  • 19-05-2017
52.0 divided by 65 g/mol gives you 0.8mol
Answer Link
saadahmed81994 saadahmed81994
  • 29-02-2020

Answer:

0.800 moles

Explanation:

  • n = [tex]\frac{m}{M}[/tex]
  • n = moles , m = mass in grams (g) , M = molar mass (g/mol)
  • Molar mass is the sum of atomic masses in the compound

           Na = 22.99 g/mol

           N = 14.01 g/mol x 3 = 42.03 g/mol

  • n = [tex]\frac{52}{22.99+42.03}[/tex]
  • n = 0.799 = 0.8 moles

           

Answer Link

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