Explanation Given Information: Metal has oxidation number of +2. The metal sulfide of 2.876 g is roasted in air and 2.368 g of metal oxide is formed. Let the metal be “M” and it has oxidation number +2. So, the formula of metal sulfide will be MS and metal oxide will be MO. Now, the number of moles treated during the reaction can be obtained for both the compounds as follows: For MO: n MO = mass of MO molar mass of MO = mass of MO molar mass of M+ molar mass of O n MO = 2 .368 g molar mass of M+16 g/mol Similarly, for MS: n MS = mass of MS molar mass of MS = mass of MS molar mass of M+ molar mass of S n MS = 2 .876 g molar mass of M+32 g/mol Now, the probable balanced reaction for roasting of MS in air will be: 2 M S + 3 O 2 → 2 M O + 2 S O 2 From the balanced reaction, the molar ratio of MS and MO are 1:1

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ISBN: 9781305079373

Author: William L. Masterton, Cecile N. Hurley

Publisher: Cengage Learning

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Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are a…

Question

Chapter 20, Problem 11QAP

Interpretation Introduction

Interpretation:

The molar mass of unknown metal has to be obtained by given conditions.

Concept introduction:

The moles of any compound or element can be calculated by given formula:

Number of moles is obtained as:

n=mM

Where n is number of moles, m is given mass, and M is molar mass.

Expert Solution & Answer

Chapter 20 Solutions

Chemistry: Principles and Reactions

Ch. 20 - Write a balanced equation to represent the...Ch. 20 - Write a balanced equation to represent the...Ch. 20 - Write a balanced equation to represent (a) the...Ch. 20 - Prob. 4QAP Ch. 20 - Prob. 5QAP Ch. 20 - Prob. 6QAP Ch. 20 - Prob. 7QAP Ch. 20 - Prob. 8QAP Ch. 20 - Prob. 9QAP Ch. 20 - Zinc is produced by electrolytic refining. The...

Ch. 20 - Prob. 11QAP Ch. 20 - Prob. 12QAP Ch. 20 - Prob. 13QAP Ch. 20 - Prob. 14QAP Ch. 20 - Prob. 15QAP Ch. 20 - Prob. 16QAP Ch. 20 - To inflate a life raft with hydrogen to a volume...Ch. 20 - What mass of KO2 is required to remove 90.0% of...Ch. 20 - Prob. 19QAP Ch. 20 - Prob. 20QAP Ch. 20 - Prob. 21QAP Ch. 20 - Prob. 22QAP Ch. 20 - Balance the following redox equations. (a)...Ch. 20 - Balance the following redox equations. (a)...Ch. 20 - Prob. 25QAP Ch. 20 - Prob. 26QAP Ch. 20 - Prob. 27QAP Ch. 20 - Using Table 17.1 (Chapter 17) calculate E° for (a)...Ch. 20 - Using Table 20.4, calculate, for the...Ch. 20 - Prob. 30QAP Ch. 20 - Prob. 31QAP Ch. 20 - Prob. 32QAP Ch. 20 - Prob. 33QAP Ch. 20 - The equilibrium constant for the reaction...Ch. 20 - Using data in Appendix 1, estimate the temperature...Ch. 20 - A 0.500-g sample of zinc-copper alloy was treated...Ch. 20 - Prob. 37QAP Ch. 20 - Prob. 38QAP Ch. 20 - Iron(II) can be oxidized to iron(III) by...Ch. 20 - Prob. 40QAP Ch. 20 - Prob. 41QAP Ch. 20 - Rust, which you can take to be Fe(OH)3, can be...Ch. 20 - Prob. 43QAP Ch. 20 - Prob. 44QAP Ch. 20 - Prob. 45QAP

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The molar mass of unknown metal has to be obtained by given conditions. Concept introduction: The moles of any compound or element can be calculated by given formula: Number of moles is obtained as: n = m M Where n is number of moles, m is given mass, and M is molar mass.

Solution Summary: The author explains that the molar mass of any compound or element can be obtained by given conditions.

Concept explainers

Interpretation:

The molar mass of unknown metal has to be obtained by given conditions.

Concept introduction:

The moles of any compound or element can be calculated by given formula:

Number of moles is obtained as:

n=mM

Where n is number of moles, m is given mass, and M is molar mass.

Chapter 20 Solutions

The molar mass of unknown metal has to be obtained by given conditions. Concept introduction: The moles of any compound or element can be calculated by given formula: Number of moles is obtained as: n = m M Where n is number of moles, m is given mass, and M is molar mass.

Solution Summary: The author explains that the molar mass of any compound or element can be obtained by given conditions.

Concept explainers

Interpretation: The molar mass of unknown metal has to be obtained by given conditions. Concept introduction: The moles of any compound or element can be calculated by given formula: Number of moles is obtained as: n=mM Where n is number of moles, m is given mass, and M is molar mass.

Chapter 20 Solutions

Interpretation:

The molar mass of unknown metal has to be obtained by given conditions.

Concept introduction:

The moles of any compound or element can be calculated by given formula:

Number of moles is obtained as:

n=mM

Where n is number of moles, m is given mass, and M is molar mass.