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
Solve for number 2
![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5ef8adc0-aa50-4d60-872e-951cb75b6eca%2Fc8ebfde1-9ce1-4bde-aa4a-be187b4988dd%2Fd5jj3u_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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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