The number of protons and electrons in aS 8 molecule needs to be deduced Concept Introduction: Every system found in nature is a composite of atoms, molecules, ions or other particles These are composed of fundamental subatomic particles: protons, neutrons and electrons. Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A) Z = atomic number = number of protons = number of electrons ------ (1) A = atomic mass = number of protons + number of neutrons ------ (2) For an ion: number of electrons = number of protons + charge on the ion ------ (3)

Question

What is the average mass of the 10 pennies? Report your value with correct significant figures. What is the error (uncertainty) associated with each mass measurement due to the equipment? What is the uncertainty associated with the average value? Note that the uncertainty of the balance will propagate throughout the calculation. What is the standard deviation of the 10 mass measurements? Explain the difference between the propagated uncertainty and the standard deviation. Which number would you use to describe the uncertainty in the measurement? Calculate the total mass of the pennies with associated uncertainty. Calculate the average density of a penny based on these data. Propagate the uncertainty values for both mass and volume in your calculations.

Answer 1

Question

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

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What is the average mass of the 10 pennies? Report your value with correct significant figures. What is the error (uncertainty) associated with each mass measurement due to the equipment? What is the uncertainty associated with the average value? Note that the uncertainty of the balance will propagate throughout the calculation. What is the standard deviation of the 10 mass measurements? Explain the difference between the propagated uncertainty and the standard deviation. Which number would you use to describe the uncertainty in the measurement? Calculate the total mass of the pennies with associated uncertainty. Calculate the average density of a penny based on these data. Propagate the uncertainty values for both mass and volume in your calculations.

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B 1 of 2 Additional problems in preparation to Midterm #1: 1.) How can the following compounds be prepared using Diels-Alder reaction: CH3 O CN (a) (b) CN CH3 2.) What is the missing reagent in the shown reaction? H3C + ? H3C H3C CN H3C ''CN (၁) H 3.) Write the products 1,2-addition and 1,4-addition of DBr to 1,3-cyclohexadiene. Remember, D is deuterium, a heavy isotope of hydrogen. It reacts exactly like hydrogen. 4.) In the shown reaction, which will be the kinetic product and which will be the thermodynamic product? H3C CI H3C HCI H3C + 5.) Which of the following molecules is aromatic? (a) (b) (c) H 6.) Which of the following molecules is aromatic? (a) (b) (c) 7.) Write the mechanism for the shown reaction. + Ха AICI 3 CI 8.) Suggest reagents that would convert benzene into the shown compounds. CI NO2 -8-6-6-8-a (a) (b) (c) (d) (e) (a) SO3H Br

Answer 2

Question

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Expert Solution & Answer

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Answer 3

Question

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Expert Solution & Answer

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Answer 4

Question

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Expert Solution & Answer

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Answer 5

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 6

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

Answer 7

Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS₈ molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an ion: number of electrons = number of protons + charge on the ion ------ (3)

Answer 8

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 9

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 10

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 11

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H₂S molecule needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 12

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 13

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

Every system found in nature is a composite of atoms, molecules, ions or other particles

These are composed of fundamental subatomic particles: protons, neutrons and electrons.

Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)

Z = atomic number = number of protons = number of electrons ------ (1)

A = atomic mass = number of protons + number of neutrons ------ (2)

For an anion: number of electrons = number of protons + charge on the ion ------ (3)

For a cation: number of electrons = number of protons - charge on the ion ------ (4)

Answer 14

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Answer 25

Ch. 2 - Atomic Theory and Laws State in your own words the...Ch. 2 - State in your own words the law of constant...Ch. 2 - Two basic laws of chemistry are the law of...Ch. 2 - Two basic laws of chemistry are the law of...Ch. 2 - Who discovered the electron? Describe the...Ch. 2 - Who discovered the nucleus? Describe the...Ch. 2 - Selenium is widely sold as a dietary supplement....Ch. 2 - Radon is a radioactive gas that can cause lung...Ch. 2 - How do the isotopes of argon, Ar-36, Ar-38, and...Ch. 2 - Consider two isotopes Fe-54 and Fe-56. (a) Write...

Solution Summary: The author explains that every system found in nature is a composite of atoms, molecules, ions or other particles.

Chapter 2 Solutions