Why coal is C 14 -depleted.

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Answer 1

Question

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

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For Raman spectroscopy/imaging, which statement is not true regarding its disadvantages? a) Limited spatial resolution. b) Short integration time. c) A one-dimensional technique. d) Weak signal, only 1 in 108 incident photons is Raman scattered. e) Fluorescence interference.

Using a cell of known pathlength b = 1.25115 x 10-3 cm, a water absorption spectrum was measured. The band at 1645 cm-1, assigned to the O-H bending, showed an absorbance, A, of 1.40. a) Assuming that water density is 1.00 g/mL, calculate the water molar concentration c (hint: M= mole/L) b) Calculate the molar absorptivity, a, of the 1645 cm-1 band c) The transmitted light, I, can be written as I= Ioexp(-xb), where x is the absorption coefficient (sometimes designated as alpha), Io is the input light, and b is the cell pathlength. Prove that x= (ln10)*x*c. (Please provide a full derivation of the equation for x from the equation for I). d) Calculate x for the 1645 cm-1 band

Answer 2

Question

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

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Answer 3

Question

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

Answer 6

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

Answer 7

Chapter 14, Problem 14.28PAE

(a)

Interpretation Introduction

To determine:

Why coal is C14 -depleted.

Answer 8

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

Answer 9

(b)

Interpretation Introduction

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 14 - Prob. 1CO Ch. 14 - Prob. 2CO Ch. 14 - Prob. 3CO Ch. 14 - Prob. 4CO Ch. 14 - Prob. 5CO Ch. 14 - Prob. 6CO Ch. 14 - Prob. 7CO Ch. 14 - Prob. 8CO Ch. 14 - Prob. 9CO Ch. 14 - Prob. 10CO

Why coal is C 14 -depleted.

Solution Summary: The author explains that after the industrial revolution, the atmospheric 14C has been depleted and the cause and effect of this depletion should be determined.

To determine:

Why coal is C14 -depleted.

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.

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Chapter 14 Solutions

Why coal is C 14 -depleted.

Solution Summary: The author explains that after the industrial revolution, the atmospheric 14C has been depleted and the cause and effect of this depletion should be determined.

To determine: Why coal is C14 -depleted.

To determine: How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20th-century ratio.

Want to see the full answer?

Chapter 14 Solutions

To determine:

Why coal is C14 -depleted.

To determine:

How the increase in C14 -depleted CO2 affect the date of a very old object in which its C14C12 ratio was compared with the 20^t^h-century ratio.