When you mixed 20 grams of magnesium and an excess of nitric acid, 1.7 grams of hydrogen was actually produced. What is the percent yield of hydrogen during this reaction?
Mg + 2HNO3 Mg(NO3)2 + H2

Select one of the options below as your answer:

A.
3.3 %

B.
48.5 %

C.
25.7 %

D.
40 %

E.
42.5 %

Question

When you mixed 20 grams of magnesium and an excess of nitric acid, 1.7 grams of hydrogen was actually produced. What is the percent yield of hydrogen during this reaction?
 Mg + 2HNO3 Mg(NO3)2 + H2

Select one of the options below as your answer:



A.
3.3 % 




B.
48.5 %




C.
25.7 %




D.
40 %




E.
42.5 %

chmvijay · Answer

what is atomic weight of Mg :)

chmvijay · Answer

and molar mass of H2

anonymous · Answer

Atomic mass: 24.305 ± 0.0006 u of Mg
2.016 H2

chmvijay · Answer

in this its almost comes around 100 % it should give  1.67 gram of H2 but its giving you 1.7 gram its 100 % yield but you dont have that option in this something wrong in question or options just have look at this