Activity 3. Solve the following:1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C204 )3 9 H20} canbe obtained from 650 mL of 0.0170 M aqueous solution of LaCl3 by adding astoichiometric amount of sodium oxalate ?2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts withexcess hydrochloric acid.2A1 + 6HC1 >Al,Cls + 3H23. What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with3.30 grams of HC1?Zn +2HC1 ZnCl2 + H24. How many milliliters of 0.200 M NH2OH are needed to react with 12.0 mL of 0.550M FeCl3?FeCla + 3NH4OH Fe(OH)3 + 3NH4C1

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Answered: 1. What mass of solid Lanthanum (III)…

1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C204 )3 9 H20} can be obtained from 650 mL of 0.0170M aqueous solution of LaCl3 by adding a stoichiometric amount of sodium oxalate ?

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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Question

Activity 3. Solve the following:
1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C204 )3 9 H20} can
be obtained from 650 mL of 0.0170 M aqueous solution of LaCl3 by adding a
stoichiometric amount of sodium oxalate ?
2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with
excess hydrochloric acid.
2A1 + 6HC1 >
Al,Cls + 3H2
3. What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with
3.30 grams of HC1?
Zn +2HC1 ZnCl2 + H2
4. How many milliliters of 0.200 M NH2OH are needed to react with 12.0 mL of 0.550
M FeCl3?
FeCla + 3NH4OH Fe(OH)3 + 3NH4C1

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