In the empirical formula experiment, which one of the following cases will decrease the mole ratio of magnesium to oxygen 1010 Water was stuck to the outside surface of the crucible and the student did not dry it before measuring the final weight. Formation of magnesium nitride as a side product. Insufficient air to react with all magnesium. O The student mistakenly recorded the mass of magnesium as 1.8 g instead of 0.18 g Rapid oxidation of magnesium which causes a loss of some Mg.

In the empirical formula experiment, which one of the following cases will decrease the mole ratio of magnesium to oxygen 1010 Water was stuck to the outside surface of the crucible and the student did not dry it before measuring the final weight. Formation of magnesium nitride as a side product. Insufficient air to react with all magnesium. O The student mistakenly recorded the mass of magnesium as 1.8 g instead of 0.18 g Rapid oxidation of magnesium which causes a loss of some Mg.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 74QAP: Magnesium ribbon reacts with acid to produce hydro- gen gas and magnesium ions. Different masses of...

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Magnesium ribbon reacts with acid to produce hydro- gen gas and magnesium ions. Different masses of magnesium ribbon are added to 10 mL of the acid. The volume of the hydrogen gas obtained is a measure of the number of moles of hydrogen produced by the reaction. Various measurements are given in the table below. (a) Draw a graph of the results by plotting the mass of Mg versus the volume of the hydrogen gas. (b) What is the limiting reactant in experiment 1? (c) What is the limiting reactant in experiment 3? (d) What is the limiting reactant in experiment 6? (e) Which experiment uses stoichiometric amounts of each reactant? (f) What volume of gas would be obtained if 0.300 g of Mg ribbon were used? If 0.010 g were used?
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