In: Chemistry
Question is not clear. It is assumed that how many grams of hydrogen are needed for the synthesis of 28.45 grams of ammonia ?
Give reaction is
2 NO(g) + 5H2(g) ------> 2NH3(g) + 2 H2O(g)
5 mol 2 mol
5x 2g= 10g 2x 17g = 34 g
? 28.45 g
? = (28.45 g/ 34g) x 10g H2
= 8.37 g H2
Therefore, 8.37 grams of hydrogen are needed.