(a) Interpretation: The grams present in 1 unified atomic mass unit should be determined. Concept introduction: Atomic weight of the element represents weighted average of mass of isotopes that naturally occurs in nature. For example, carbon has two major naturally occurring isotopes 6 12 C and 6 13 C . Therefore, the atomic weight can be represent as follows: Atomic weight of C = ( ( Mass of 6 12 C ) ( Abundance of 6 12 C ) + ( Mass of 6 13 C ) ( Abundance of 6 13 C ) )
(a) Interpretation: The grams present in 1 unified atomic mass unit should be determined. Concept introduction: Atomic weight of the element represents weighted average of mass of isotopes that naturally occurs in nature. For example, carbon has two major naturally occurring isotopes 6 12 C and 6 13 C . Therefore, the atomic weight can be represent as follows: Atomic weight of C = ( ( Mass of 6 12 C ) ( Abundance of 6 12 C ) + ( Mass of 6 13 C ) ( Abundance of 6 13 C ) )
Solution Summary: The author explains that atomic weight of the element represents weighted average of mass of isotopes that naturally occur in nature.
The grams present in 1 unified atomic mass unit should be determined.
Concept introduction:
Atomic weight of the element represents weighted average of mass of isotopes that naturally occurs in nature. For example, carbon has two major naturally occurring isotopes 612C and 613C. Therefore, the atomic weight can be represent as follows:
Atomic weight of C=((Mass of 612C)(Abundance of 612C)+(Mass of 613C)(Abundance of 613C))
Interpretation Introduction
(b)
Interpretation:
Total number of atoms equivalent to a mole should be determined.
Concept introduction:
Periodic table represents a systematic arrangement according to element’s physical as well as chemical properties. Here, elements are represented as a two-letter symbol and are arranged in increasing order of atomic number. First letter of symbol is always represented in capital letters and second letter is always represented as small letter.
(a) Determine the number of oxygen atoms and hydrogen atoms in1.00 kg of water. (b) Calculate the mass of calcium carbonate that contains 1.00 mol of oxygen atoms.
The following diagram represents the collection of elementsformed by a decomposition reaction. (a) If the blue spheresrepresent N atoms and the red ones represent O atoms,what was the empirical formula of the original compound?(b) Could you draw a diagram representing the moleculesof the compound that had been decomposed? Why or whynot? [
The molar mass of iron is : M(Fe)=56 g.mol^ -1
a) Calculate the number of atoms present in 0.28g of iron.
b) What mass of iron corresponds to 0.18 mol of iron ?
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY