Chemistry, 10.12.2019 03:31 Krazyyykiddd
Electrolysis of a solution of zn(no3)2(aq) to give zinc metal is carried out using a current of 2.12
a. how long should the electrolysis continue in order to prepare 2.15 g of zinc?
Answers: 1
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If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g
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If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax
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When a scientific theory has been tested and proved by the scientific community, it becomes a law
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These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.
Answers: 1
Electrolysis of a solution of zn(no3)2(aq) to give zinc metal is carried out using a current of 2.12...
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