Based on this reaction:

H2(g) + I2(g)= 2HI(g)
How many moles of iodine are necessary for form 0.530 moles of hydrogen iodine

1 answer

Look at the equation. 1 mol I2 will produce 2 mols HI; therefore, 0.530 mols HI will require 1/2 that of I2.
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