When nh3 is prepared from 28 g n2 and excess h2, the theoretical yield of nh3 is 34 g. when this reaction is carried out in a given experiment, only 30. g is produced. what is the percentage yield?

88%

Explanation:

Percentage yield is the ratio of experimental to the theoretical yield in terms of percentage.

percentage yield =

Given :

Experimental yield = 30 g

Theoretical yield = 34 g

percentage yield =

Therefore, the percentage yield of the reaction is 88%

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

the answer would be a