Worksheet 2: The Mole and Chemical Quantities1) What is the molar mass of ammonium sulfate?2) a) How many MOLECULES of nitrogen trifluoride are present in 4.50 moles of thiscompound?b) How many ATOMS of fluorine are present in 4.50 moles of nitrogen trifluoride?c) How many MOLES of nitrogen trifluoride are present in 1.24 x 10 22 molecules ofthis compound?d) How many grams of nitrogen trifluoride must be weighed out to get a sample ofnitrogen trifluoride that contains 18.7 g of fluorine?e) If a sample of nitrogen trifluoride contains 18.7 g of fluorine, how many grams ofnitrogen does it contain?3) Magnesium hydroxide and ammonia are formed when magnesium nitride is added towaterMg3N2 (s) + 6 H2O (1) → 3 Mg(OH)2 (s) + 2 NH3 (1)a) How many moles of magnesium nitride are needed to produce 2.00 moles ofammonia? b) If 6.62 grams of magnesium nitride are mixed with excess water, how manygrams of magnesium hydroxide are produced?c) If the reaction in question 3b) yields 9.10 g magnesium hydroxide, what is thepercent yield?4) For the following reaction: CaCO3(s) + 2 HCl(aq) → CaCl2(aq) + CO2(g) + H2O(1)a) If 25.0 g CaCO3 and 0.25 mol of HCl in solution are placed in a reaction vessel, whichreactant is limited?b) How many moles of calcium chloride could be produced?c) What is the percent yield of this reaction if 10.25 g of calcium chloride was collected?

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Worksheet 2: The Mole and Chemical Quantities 1) What is the molar mass of ammonium sulfate? 2) a) How many MOLECULES of nitrogen trifluoride are present in 4.50 moles of this compound? b) How many ATOMS of fluorine are present in 4.50 moles of nitrogen trifluoride? c) How many MOLES of nitrogen trifluoride are present in 1.24 x 10 22 molecules of this compound? d) How many grams of nitrogen trifluoride must be weighed out to get a sample of nitrogen trifluoride that contains 18.7 g of fluorine?

Worksheet 2: The Mole and Chemical Quantities 1) What is the molar mass of ammonium sulfate? 2) a) How many MOLECULES of nitrogen trifluoride are present in 4.50 moles of this compound? b) How many ATOMS of fluorine are present in 4.50 moles of nitrogen trifluoride? c) How many MOLES of nitrogen trifluoride are present in 1.24 x 10 22 molecules of this compound? d) How many grams of nitrogen trifluoride must be weighed out to get a sample of nitrogen trifluoride that contains 18.7 g of fluorine?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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