Question 14 of 32 Map coa General Chemistry 4th Edition University Science Books

Question

Question 14 of 32 Map coa General Chemistry 4th Edition University Science Books presented by Sapling Leaming Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation Heavy water is water with the isotope deuterium in place of ordinary hydrogen, and its formula is D2O. The above reaction can be used to produce heavy ammonia, ND3(g), according to the equation, Li,N(s) +3D The mass of deuterium, D, is 2.014 g/mol. Number g D2O Hint Previous & Give Up &View; Solution Check AnswerNextExit

Explanation / Answer

From the balanced equation,

1 mol of ND3 is formed from 3 mol of D2O

(OR)

20.042 g. of ND3 is formed from 3*20.028 g. of D2O

Then, 165 mg. or 0.165 g. of ND3 is formed from 3 * 20.028 * 0.165 / 20.042 = 0.495 g. of D2O

So, mass of D2O required = 0.430 g.

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