Half life of a certain radioactive nuclide is given. The rate constant in s -1 for this nuclide is to be calculated. The decay rate in decays/s for 1 mole of this nuclide is to be calculated. Concept introduction: Unstable nuclides become stable by emitting radiation such as alpha, beta, and gamma particles and this is known as radioactive decay. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value. To determine: The rate constant in s -1 for the given nuclide.

Question

1. Which one(s) of these can be oxidized with CrO3 ? (could be more than one) a) triphenylmethanol b) 2-pentanol c) Ethyl alcohol d) CH3 2. Write in all the product(s) of this reaction. Label them as "major" or "minor". 2-methyl-2-hexanol H2SO4, heat

Answer 1

Question

Chapter 18, Problem 74CWP

(a)

Interpretation Introduction

Interpretation: Half life of a certain radioactive nuclide is given. The rate constant in s-1 for this nuclide is to be calculated. The decay rate in decays/s for 1 mole of this nuclide is to be calculated.

Concept introduction: Unstable nuclides become stable by emitting radiation such as alpha, beta, and gamma particles and this is known as radioactive decay. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.

To determine: The rate constant in s-1 for the given nuclide.

(b)

Interpretation Introduction

Interpretation: Half life of a certain radioactive nuclide is given. The rate constant in s-1 for this nuclide is to be calculated. The decay rate in decays/s for 1 mole of this nuclide is to be calculated.

Concept introduction: Unstable nuclides become stable by emitting radiation such as alpha, beta, and gamma particles and this is known as radioactive decay. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.

To determine: The decay rate in decays/s for 1 mole of the given nuclide.

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1. Which one(s) of these can be oxidized with CrO3 ? (could be more than one) a) triphenylmethanol b) 2-pentanol c) Ethyl alcohol d) CH3 2. Write in all the product(s) of this reaction. Label them as "major" or "minor". 2-methyl-2-hexanol H2SO4, heat

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