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What is the molarity of NO3- in each solution?a. 0.150 M

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 55E Chapter 4

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 55E

What is the molarity of NO3 - in each solution?

a. 0.150 M KNO3                 b. 0.150 M Ca(NO3)2 

c. 0.150 M Al(NO3)3

Step-by-Step Solution:
Step 1 of 3

Problem 55E: Solution: Here, we are going to write the balanced chemical equations for the given set of reactions with the help of reactivity series. Step1: The reactivity series is a list of metals arranged in the order of their decreasing activities. We can say that all metals are not equally reactive. That is why, reactive metals can displace less reactive metals from their compounds in solution or molten form. In order to know, which metal is more reactive, several experiments were performed, and finally a series known as the reactivity or activity series was developed. Step2: a) Iron metal is added to a solution of copper(ll) nitrate Since iron is placed above copper in the reactivity series, it is more reactive than copper. Hence, it will displace copper from its nitrate solution. The balanced chemical equation is: Fe(s) + Cu(NO ) 3 2-------> Fe(NO ) (a3 2Cu(s) b) Zinc metal is added to a solution of magnesium sulfate Since, zinc is placed below magnesium in the activity series, it is less reactive than magnesium. Hence, no reaction occurs when zinc is added to a solution of magnesium sulfate. Zn(s) + MgSO (aq4--------> NR c) Hydrobromic acid is added to tin metal Since tin is placed above hydrogen in the reactivity series, it is more reactive than hydrogen. Hence, it will displace hydrogen from its bromide solution. The balanced chemical equation is: Sn(s) + 2HBr(aq) -------> SnBr (aq) 2H (g) 2 d) Hydrogen gas is bubbled through an aqueous solution of nickel(ll) chloride Since, hydrogen is placed below nickel in the activity series, it is less reactive than nickel. Hence, no reaction occurs when hydrogen gas is bubbled through an aqueous solution of nickel(ll) chloride H2g) + NiCl 2q) --------> NR e) Aluminum metal is added to a solution of cobalt(ll) sulfate Since aluminium is placed above cobalt in the reactivity series, it is more reactive than cobalt. Hence, it will displace cobalt from its sulfate solution. The balanced chemical equation is: 2Al(s) + 3CoSO (aq4-------> Al (SO2 (a4 33Co(s)

Step 2 of 3

Chapter 4, Problem 55E is Solved
Step 3 of 3

Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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What is the molarity of NO3- in each solution?a. 0.150 M