(a) Interpretation: Using the average atomic masses, the mass (in g) of the sample should be determined. 5.0 moles of potassium Concept Introduction: Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12 t h of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom. Number of moles = given mass Molar mass .
(a) Interpretation: Using the average atomic masses, the mass (in g) of the sample should be determined. 5.0 moles of potassium Concept Introduction: Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12 t h of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom. Number of moles = given mass Molar mass .
Solution Summary: The author explains how the average atomic masses determine the mass (in g) of the sample.
Using the average atomic masses, the mass (in g) of the sample should be determined.
5.0 moles of potassium
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(b)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
0.000305 mole of mercury
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(c)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
2.31×10−5moles of manganese
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(d)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
10.5 moles of phosphorus
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(e)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
4.9×104 moles of iron
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(f)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
125 moles of lithium
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Number of moles = given massMolar mass.
Interpretation Introduction
(g)
Interpretation:
Using the average atomic masses, the mass (in g) of the sample should be determined.
0.01205 mole of fluorine
Concept Introduction:
Atomic mass unit measures mass in an atomic scale, it is a standard unit for mass. Here, 1 amu is equal to the mass of either one proton or neutron and equals to 1 g/mol. Atomic mass unit is equal to 1/12th of the mass of C-12 atom. For example, if average atomic mass of carbon is 12.01 thus, it is the mass of 1 carbon atom.
Why doesn't this carry on to form a ring by deprotonating the alpha carbon and the negatively-charged carbon attacking the C=O?
6. A solution (0.0004 M) of Fe(S2CNEt2)3 (see the structural drawing below) in chloroform
has absorption bands at:
350 nm (absorbance A = 2.34);
514 nm(absorbance A = 0.0532);
Calculate the molar absorptivity values for these bands. Comment
on their possible nature (charge transfer transitions or d-d
S
N-
transitions?).
(4 points)
What is the mechanism for this?
Chapter 8 Solutions
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY