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CBSE Class 9 Answered

nitrogen and hydrogen combine together to form ammonia.
n subscript 2 plus 3 h subscript 2 rightwards arrow 2 n h subscript 3(relative atomic mass n=14, h=1). the mass of nitrogen andhydrogen which combine together to forn 6.8 g ammonia are :
a)
n subscript 2 equals end subscript 2.8 space g comma space h subscript 2 equals 4.0 space g space space space space space space space space space space b right parenthesis n subscript 2 equals space 5.6 space g comma space h subscript 2 space equals 1.2 space g space space space space space space space space space c right parenthesis space n subscript 2 equals 4.0 space g comma space h subscript 2 equals 2.8 space g space space space space space space space d right parenthesis n subscript 2 space equals 1.2 space g comma space h subscript 2 equals space 5.6 g space space space space space space space space
please explain your answer.
Asked by dev | 09 Mar, 2015, 12:23: PM
answered-by-expert Expert Answer
Molar mass of ammonia in the reaction is 34 g / mol.
Reaction has 28 g of nitrogen.
If 34 g of ammonia has 28 g of nitrogen
then 6.8 g of ammonia will have 5.6 g of nitrogen.
that corresponds to option B.
Answered by Arvind Diwale | 09 Mar, 2015, 05:40: PM

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