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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How do I do the last 2 parts of this question?
Transcribed Image Text:96
5 Limiting Reactant: Synthesis of Nickel(11) Complex
3. Potassium metal and water react to form potassium hydroxide and hydrogen gas. If
you react 1.12 g of potassium metal and 15.0 mL of water (density 0.99997 g/mL),
answer the following questions below:
%3D
Write a balanced chemical equation.
a.
212
b. Which reactant is the limiting reagent?
-0.6787
34
moles af Leate rsg=14.9
=0.99997
14.999955
Moles af Potassium=12
Potassiun
=0,83 m
C.
How many grams of potassium hydroxide are formed?
d. How many grams of potassium metal remain after the reaction?
How many grams of water remain after the reaction?
Expert Solution
Step 1
K + H2O ------> KOH + H2
moles 1 1 1 1
Caculate the number of moles of each reactant
Potassium
Number of moles = 1.12/39 = 0.0287
Water
Density = mass / volume
mass = 0.99997*15 = 15g
Number of moles = 15/18 =0.83
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