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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Answer 1 and 2. Pls follow the format (page with yellow highlight)

Transcribed Image Text:Limiting/Excess Reactant Problem with % Yield
4KO,(6) + 2H,0(1) 4KOH(s) + 30,(g)
If a reaction vessel contains 120.0 g of KO, and 47.0 g of H,O,
how many grams of O, can be produced?
4KO,(s) + 2H,0(1) 4KOH(s) + 30,(g)
--
Hide
47.0 g
Based on: 120.0ke mel 3mnt-0, 32.0g O,
40,51 g0,
KO,
ко,
71.4mot-kO mote
Based on: 47.0 0 mel-L0 3mol-0, 32.0g O,
1253 g0,
18.02 gHO 2 mel 0-mol-0,
Question if only 35.2 g of O, were recovered, what was the percent yield?
35,2
x 100 86.9% yield
40.51
actual
x100=
theoretical
16

Transcribed Image Text:1.
What is the percent yield of the reaction:
PCI3(g) + 3H20
() -а НЗРОЗ
(aq) + 3HCI (aq)
Where
20.0 g of phosphorous trichloride react with excess
water to form 11.2 g HCI
and phosphorous acid (H3PO3)?
2.
Given CH4 (g) + C12 (g) --à CH3CI (g) +CHI (g). Ten
grams
of CH4 and 40.0g of chlorine gas undergo a reaction
that has a 75.0% yield.
Calculate the mass (in grams) of chloromethane
(CH3CI) formed.
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