Determine the mass of Ga 2 O 3 formed from the reaction of 14.5 g gallium metal

Question:

Determine the mass of Ga2O3 formed from the reaction of 14.5 g gallium metal with excess O2.

Strategy

Solve the problem by using the four-step procedure just outlined:

(1) Write the balanced equation;

(2) Calculate the moles of the given substance, gallium, from the mass;

(3) Use the chemical equation to calculate the moles of desired species, Ga2O3, from the moles of gallium;

(4) Finish the problem by calculating the mass of Ga2O3 from the moles of Ga2O3. The information needed for steps 2 and 4 comes from the periodic table and the chemical formulas, and step 3 from the coefficients in the equation. Because the oxygen is in excess, the amount of product formed will depend only on the amount of the gallium.

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Related Book For  book-img-for-question

Chemistry Principles And Practice

ISBN: 9780534420123

3rd Edition

Authors: Daniel L. Reger, Scott R. Goode, David W. Ball

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