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
3.3 %
48.5 %
25.7 %
102 %
98 %

it should be all of them because it asks if you included all of those in your answer

explanation:

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.