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Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Question
Chapter 12, Problem 12.8YT
Interpretation Introduction
Interpretation:
The mass of
Concept Introduction:
Concentration of a solution can be calculated, in parts per million, with the help of masses of the solute and solution.
The density of the solution is defined as the mass of the solution per unit volume of the solution. The expression for density is as follows;
Here,
Concentration of a solution in parts per million is expressed as follows:
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LABORATORY REPORT FORM
Part I. Determination of the Formula of a Known Hydrate
1. Mass of empty evaporating dish
3. Mass of hydrate
Using subtraction
or mass by difference,
find the mass of
the hydrate
76.96
-75.40
75.40g
76.968
1.568
01.56
76.90 g
2. Mass of evaporating dish + hydrate
4. Mass of evaporating dish + hydrate (after heating)
First 76.98 g
Third 76.66g
Second
Fourth (if necessary) 76.60g
5. Mass of anhydrate
6. Mass of water lost by the hydrate
7. Percent of water of hydration
(Show Calculations)
8. Moles of water
(Show Calculations)
mol
mass of water
=
MM of water (g/m)
9. Moles of anhydrate
(Show Calculations)
10. Ratio of moles of water to moles of anhydrate
11 F(Show Calculations)
11. Formula of hydrate
- Mass of water (g) x 100
% water hydration
g
g
%
Mass of hydrate (9) x IC
% = (Mass of hydrate- mass of an)
mass of hydrate (g)
% = (1.569-
× 100=
mol
1.569
mol Mol Mass of
anhydrate/MM
of anhydrate
12. What was the color of the hydrate?
blue
What was the color of the…
compared t-critical with t-calculated and 95% confidence interval to answer this question
Chapter 12 Solutions
Chemistry In Focus
Ch. 12 - Prob. 12.1YTCh. 12 - Which of the following molecules are polar?...Ch. 12 - Which of the following molecules do you expect to...Ch. 12 - Prob. 12.4YTCh. 12 - Prob. 12.5YTCh. 12 - Prob. 12.6YTCh. 12 - Prob. 12.7YTCh. 12 - Prob. 12.8YTCh. 12 - Prob. 12.9YTCh. 12 - Substance A is composed of molecules that have...
Ch. 12 - A representation of liquid water is shown below....Ch. 12 - Prob. 3SCCh. 12 - Prob. 4SCCh. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - Prob. 7ECh. 12 - Prob. 8ECh. 12 - Prob. 9ECh. 12 - Prob. 10ECh. 12 - Why does sweating cool the human body?Ch. 12 - Prob. 12ECh. 12 - Prob. 13ECh. 12 - Prob. 14ECh. 12 - Explain the hydrologic cycle.Ch. 12 - Prob. 16ECh. 12 - Prob. 17ECh. 12 - How does a water softener work?Ch. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - What is the SDWA?Ch. 12 - Prob. 23ECh. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Explain the concerns that groups like the EWG or...Ch. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Which compound would you expect to have the...Ch. 12 - Which compound would you expect to have the...Ch. 12 - Prob. 31ECh. 12 - Prob. 32ECh. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Prob. 35ECh. 12 - Prob. 36ECh. 12 - Prob. 37ECh. 12 - Prob. 38ECh. 12 - How many grams of sucrose (C12H22O11) are present...Ch. 12 - How many grams of glucose (C6H12O6) are present in...Ch. 12 - Prob. 41ECh. 12 - How many grams of NaF are present in 4.5 L of a...Ch. 12 - A 250-g sample of hard water contains...Ch. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Prob. 52ECh. 12 - Prob. 53ECh. 12 - Prob. 54ECh. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - Prob. 57ECh. 12 - Prob. 58E
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