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Concept explainers
(a)
Interpretation:
The mass of
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 number of molecules is given.
Step 1: Determine the amount of substance by using Avogadro’s number. The expression to calculate the moles of a chemical substance is as follows:
Step 2: Multiply the moleswith the molar mass of the chemical substance to obtain the mass of chemical substance in grams. The mass can be converted to kilogram by using the relation between gram and kilogram. The formula to calculate the mass of a substance in kilogram is as follows:
(b)
Interpretation:
The amount of chlorine atoms in
Concept introduction:
Molar mass is defined as the mass of
The molecular formula of a compound tells the number of atoms of each element present in the compound.
Following are the steps to calculate the amount of an element in a compound.
Step 1: Convert the mass of the compound to moles by using molar mass of that compound by using the formula as,
Step 2: Determine the number of moles of atoms of an element from the molecular formula of the compound. The formula to calculate the moles of an element is as follows:
(c)
Interpretation:
The number of
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
The molecular formula of a compound tells the number of atoms/ions of each element present in the compound.
Following are the steps to calculate the number of ions in a compound.
Step 1: Convert the mass of the compound to moles by using the molar mass of that compound as follows:
Step 2: Determine the number of moles of ions of an element from the molecular formula of the compound. The formula to calculate the moles of ions is as follows:
Step 3: Determine the number of ions by multiplying the moles of ions with the Avogadro’s number. The expression to calculate the number of ions of an element is as follows:
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Chapter 3 Solutions
Chemistry: The Molecular Nature of Matter and Change
- NH2 1. CH3–MgCl 2. H3O+ ? As the lead product manager at OrganometALEKS Industries, you are trying to decide if the following reaction will make a molecule with a new C - C bond as its major product: If this reaction will work, draw the major organic product or products you would expect in the drawing area below. If there's more than one major product, you can draw them in any arrangement you like. Be sure you use wedge and dash bonds if necessary, for example to distinguish between major products with different stereochemistry. If the major products of this reaction won't have a new C - C bond, just check the box under the drawing area and leave it blank. Click and drag to start drawing a structure. This reaction will not make a product with a new C - C bond. Х ☐: Carrow_forwardPredict the major products of this organic reaction. If there will be no major products, check the box under the drawing area instead. No reaction. : + Х è OH K Cr O 2 27 2 4' 2 Click and drag to start drawing a structure.arrow_forwardLaminar compounds are characterized by havinga) a high value of the internal surface of the solid.b) a high adsorption potential.arrow_forward
- Intercalation compounds have their sheetsa) negatively charged.b) positively charged.arrow_forwardIndicate whether the following two statements are correct or not:- Polythiazine, formed by N and S, does not conduct electricity- Carbon can have a specific surface area of 3000 m2/garrow_forwardIndicate whether the following two statements are correct or not:- The S8 heterocycle is the origin of a family of compounds- Most of the elements that give rise to stable heterocycles belong to group d.arrow_forward
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