
Concept explainers
(a)
Interpretation:
The mass
Concept introduction:
Molar mass of a substance is defined as the mass of one mole of a chemical entity. It is calculated as the summation of product of
(a)

Answer to Problem 3.18P
The mass
Explanation of Solution
The formula ot calculate the molar mass of
Substitute
The expression to calculate mass
Substitute
The mass
(b)
Interpretation:
The mass
Concept introduction:
One mole is defined as the amount of substance that contains the same number of entities such as molecules, ions, atoms as the number of atoms in
Molar mass is defined as the mass of
Following are the steps to calculate the mass of a chemical substance when a number of molecules are given.
Step 1: Determine the amount of substance in moles by using Avogadro’s number. The expression to calculate the moles of a chemical substance is as follows:
Step 2: Multiply the moles with the molar mass of the chemical substance to obtain the mass of chemical substance in grams. The formula to calculate the mass of a substance in grams is as follows:
(b)

Answer to Problem 3.18P
The mass
Explanation of Solution
Dinitrogen pentoxide is an inorganic compound with chemical formula
The formula to calculate the molar mass of
Substitute
One mole of
The expression to calculate mass
Substitute
The mass
(c)
Interpretation:
The number of moles and formula unit in
Concept introduction:
One mole is defined as the amount of substance that contains the same number of entities such as molecules, ions, atoms as the number of atoms in
Molar mass is defined as the mass of
A formula unit is used for the ionic compound to represent their empirical formula. The steps to determine the formula unit of an ionic compound from the given mass are as follows:
Step 1: Divide the given mass of the ionic compound with the molar mass to calculate the moles. The expression to calculate the moles of an ionic compound when the mass is given is as follows:
Step 2: Multiply the calculated moles with the Avogadro’s number to determine the formula units of an ionic compound. The expression to determine the formula unit is as follows:
(c)

Answer to Problem 3.18P
The number of moles and formula unit in
Explanation of Solution
Sodium perchlorate is an ionic compound with chemical formula
The formula to calculate the molar mass of
Substitute
The expression to calculate moles of
Substitute
The expression to calculate formula units (FU) of
Substitute
The number of moles and formula unit in
(d)
Interpretation:
The number of sodium ions, perchlorate ions, chlorine atoms and oxygen atoms in the mass of compound
Concept introduction:
A formula unit is used for the ionic compound to represent their empirical formula. The molecular formula of a compound tells the number of atoms/ions of each element present in the compound.
Number of ions in a chemical compound is directly linked to the formula unit of the compound.
(d)

Answer to Problem 3.18P
The number of sodium ions, perchlorate ions, chlorine atoms are
Explanation of Solution
From the formula of
The expression to calculate the number of ions/atoms in
Substitute
Substitute
Substitute
Substitute
The number of sodium ions, perchlorate ions, chlorine atoms are
Want to see more full solutions like this?
Chapter 3 Solutions
Chemistry: The Molecular Nature of Matter and Change - Standalone book
- Predict the major products of this organic reaction: 1. NaH (20°C) 2. CH3Br ? Some notes: • Draw only the major product, or products. You can draw them in any arrangement you like. • Be sure to use wedge and dash bonds where necessary, for example to distinguish between major products that are enantiomers. • If there are no products, just check the box under the drawing area. No reaction. Click and drag to start drawing a structure. G Crarrow_forwardPredict the major products of this organic reaction: 1. LDA (-78°C) ? 2. Br Some notes: • Draw only the major product, or products. You can draw them in any arrangement you like. . • Be sure to use wedge and dash bonds where necessary, for example to distinguish between major products that are enantiomers. • If there are no products, just check the box under the drawing area. No reaction. Click and drag to start drawing a structure. Xarrow_forwardPlease draw the structuresarrow_forward
- Draw the missing intermediates 1 and 2, plus the final product 3, of this synthesis: 0 1. Eto 1. Eto- 1 2 2. MeBr 2. EtBr H3O+ A 3 You can draw the three structures in any arrangement you like. Explanation Check Click and drag to start drawing a structure.arrow_forwardDraw the missing intermediate 1 and final product 2 of this synthesis: 1. MeO- H3O+ 1 2 2. PrBr Δ You can draw the two structures in any arrangement you like. Click and drag to start drawing a structure.arrow_forwardWhat is the differences between: Glyceride and phosphoglyceride Wax and Fat Soap and Fatty acid HDL and LDL cholesterol Phospho lipids and sphingosine What are the types of lipids? What are the main lipid components of membrane structures? How could lipids play important rules as signaling molecules and building units? The structure variety of lipids makes them to play significant rules in our body, conclude breifly on this statement.arrow_forward
- What is the differences between DNA and RNA for the following: - structure - function - type What is the meaning of: - replication - transcription - translation show the base pair connection(hydrogen bond) in DNA and RNAarrow_forwardWhat is the IP for a amino acid- give an example what are the types of amino acids What are the structures of proteins The N-Terminal analysis by the Edman method shows saralasin contains sarcosine at the N-terminus. Partial hydrolysis of saralasin with dilute hydrochloric acid yields the following fragments: Try-Val-His Sar-Arg-Val His-Pro-Ala Val- Tyr- Val Arg-Val-Tyr What is the structure of saralasin?arrow_forwardWhat is the IP for a amino acid- give an example what are the types of amino acids What are the structures of proteins The N-Terminal analysis by the Edman method shows saralasin contains sarcosine at the N-terminus. Partial hydrolysis of saralasin with dilute hydrochloric acid yields the following fragments: Try-Val-His Sar-Arg-Val His-Pro-Ala Val- Tyr- Val Arg-Val-Tyr What is the structure of saralasin?arrow_forward
- > aw the missing intermediates 1 and 2, plus the final product 3, of this synthesis: 1. Eto 1. EtO¯ H3O+ 1 2 2. PrBr 2. PrBr Δ You can draw the three structures in any arrangement you like. 3 Click and drag to start drawing a structure. Explanation Check 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacarrow_forwardThere are various factors that affect an equilibrium. Give 3 of these factors and explain using examples andequations how an equilibrium is affected by these factors. Please remember that this is a communication question so that you are communicating your understanding of the factors that affect and equilibrium.arrow_forwardEEZE LETCHUP ID Draw the most likely conjugate base resulting from this acid-base reaction. Include all lone pairs. Ignore inorganic byproducts. Drawing く NaOCH2CH3 :0: :0: 狗arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





