The chemical equation below shows the decomposition of nitrogen triiodide (NI3) into nitrogen (N2) and iodine (I2). 2NI3 mc030-1.jpg N2 + 3I2 The molar mass of I2 is 253.80 g/mol, and the molar mass of NI3 is 394.71 g/mol. How many moles of I2 will form 3.58 g of NI3?

• vgitt21: The molar mass of I2 is 253.80 g/mol, and the molar mass of NI3 is 394.71 g/mol. How many moles of I2 will form 3.58 g of NI3?
  
  
  0.0136 
• IlaMends:

  Answer:

  0.0135 moles of iodine will be formed.

  Explanation:

  [tex]2NI_3\rightarrow N_2+3I_2[/tex]

  Moles of nitrogen triiodide =[tex]\frac{3.58 g}{394.71 g/mol}=0.0090 mol[/tex]

  According to reaction 2 moles of nitrogen triiodide gives 3 moles of iodione gas.

  Then 0.0090 mol of nitrogen triiodide will give:

  [tex]\frac{3}{2}\times 0.0090 mol=0.0135 mol[/tex]

  0.0135 moles of iodine will be formed.