FOUNDATIONS OF COLLEGE CHEM +KNEWTONALTA
15th Edition
ISBN: 9781119797807
Author: Hein
Publisher: WILEY
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Chapter 9, Problem 1PE
(a)
Interpretation Introduction
Interpretation:
The number of moles in
(b)
Interpretation Introduction
Interpretation:
The number of moles in
(c)
Interpretation Introduction
Interpretation:
The number of moles in
(d)
Interpretation Introduction
Interpretation:
The number of moles in
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12.
(b) A student knew that calcium hydroxide could be made by adding calcium to water.
The student added 0.00131 mol of calcium to a beaker containing about 100 cm of water.
A reaction took place as shown by the equation below,
All the calcium hydroxide formed was soluble.
Ca(s) + 2H,0(1I) → Ca(OH) (aq) + H,(g)
(D Calculate the mass of calcium that the student added.
mass of calcium =
g
(ii) Calculate the volume of hydrogen gas, in dm3, produced in this reaction at room
temperature and pressure, RTP.
volume of hydrogen gas =
dm3
(iii) The student transferred the contents of the beaker to a 250 cm3 volumetric flask and
water was added to make the solution up to 250 cm³.
Calculate the concentration, in mol dm3, of hydroxide ions in the 250 cm³ solution.
concentration =
moldm 3
. A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated temperature to yield 0.692 g H2O and 3.381 g CO2.(a) Calculate the masses of C and H in the sample.(b) Does the compound contain any other elements?(c) What are the mass percentages of C and H in thecompound?(d) What is the empirical formula of the compound?
A compound is composed of carbon, hydrogen, nitrogen and oxygen. When a 1.500-g sample of the compound is completely combusted, it yields 1.476 g of CO2and 0.605 g of H2O. In a separate analysis to determine nitrogen, 1.500 g of the compound is found to produce 0.313 g of N2. (a) Calculate the mass percent of each element in the compound. (b) Determine the empirical formula of the compound. (c) If the compound has a molar mass of 134 g/mol, what is the molecular formula?
Chapter 9 Solutions
FOUNDATIONS OF COLLEGE CHEM +KNEWTONALTA
Ch. 9.1 - Prob. 9.1PCh. 9.2 - Prob. 9.2PCh. 9.2 - Prob. 9.3PCh. 9.3 - Prob. 9.4PCh. 9.3 - Prob. 9.5PCh. 9.4 - Prob. 9.6PCh. 9.4 - Prob. 9.7PCh. 9.5 - Prob. 9.8PCh. 9.5 - Prob. 9.9PCh. 9.5 - Prob. 9.10P
Ch. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 1PECh. 9 - Prob. 2PECh. 9 - Prob. 3PECh. 9 - Prob. 4PECh. 9 - Prob. 5PECh. 9 - Prob. 6PECh. 9 - Prob. 7PECh. 9 - Prob. 8PECh. 9 - Prob. 9PECh. 9 - Prob. 10PECh. 9 - Prob. 11PECh. 9 - Prob. 12PECh. 9 - Prob. 13PECh. 9 - Prob. 14PECh. 9 - Prob. 15PECh. 9 - Prob. 16PECh. 9 - Prob. 17PECh. 9 - Prob. 18PECh. 9 - Prob. 19PECh. 9 - Prob. 20PECh. 9 - Prob. 21PECh. 9 - Prob. 22PECh. 9 - Prob. 23PECh. 9 - Prob. 24PECh. 9 - Prob. 25PECh. 9 - Prob. 26PECh. 9 - Prob. 27PECh. 9 - Prob. 28PECh. 9 - Prob. 29PECh. 9 - Prob. 30PECh. 9 - Prob. 31PECh. 9 - Prob. 33AECh. 9 - Prob. 34AECh. 9 - Prob. 35AECh. 9 - Prob. 36AECh. 9 - Prob. 37AECh. 9 - Prob. 39AECh. 9 - Prob. 42AECh. 9 - Prob. 43AECh. 9 - Prob. 44AECh. 9 - Prob. 45AECh. 9 - Prob. 46AECh. 9 - Prob. 47AECh. 9 - Prob. 48AECh. 9 - Prob. 49AECh. 9 - Prob. 50AECh. 9 - Prob. 51AECh. 9 - Prob. 52AECh. 9 - Prob. 53AECh. 9 - Prob. 54AECh. 9 - Prob. 55AECh. 9 - Prob. 56AECh. 9 - Prob. 57AECh. 9 - Prob. 59CECh. 9 - Prob. 60CECh. 9 - Prob. 61CECh. 9 - Prob. 62CECh. 9 - Prob. 63CE
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