What is the Number of Molecules in 0.694 Moles of C2H6
Chemical reactions and reactions mechanisms form a significant part of the field of chemistry. One of the essential concepts in this field is the mole. The mole is a unit of measurement in chemistry used to express the amount of a substance. The number of molecules in a given quantity of a substance can be determined using the concept of the mole. In this article, we will explore the calculation of the number of molecules in 0.694 moles of C2H6, a chemical compound commonly known as ethane.
To calculate the number of molecules in a given number of moles, we need to use Avogadro's number, which is the number of particles found in one mole of a substance. Avogadro's number is approximately 6.022 × 10^23 particles per mole. This number is derived from the concept that one mole of a substance contains the same number of entities as there are atoms in exactly 12 grams of pure carbon-12.
Now, let's calculate the number of molecules in 0.694 moles of C2H6. The molecular formula of ethane (C2H6) indicates that there are two carbon atoms (C) and six hydrogen atoms (H) in each molecule of ethane. Thus, we need to break down the calculation into two parts, one for the carbon atoms and the other for the hydrogen atoms.
To calculate the number of carbon atoms, we multiply the number of moles (0.694) by Avogadro's number:
0.694 moles * 6.022 × 10^23 particles/mole of C = 4.132 × 10^23 carbon atoms
Similarly, to calculate the number of hydrogen atoms, we need to multiply the number of moles (0.694) by Avogadro's number, and then multiply by the ratio of hydrogen atoms to molecules in ethane, which is 6:
0.694 moles * 6.022 × 10^23 particles/mole of H * 6 H atoms/molecule of C2H6 = 2.792 × 10^24 hydrogen atoms
Now, to calculate the total number of molecules in 0.694 moles of C2H6, we divide the number of carbon atoms by 2 (since each molecule of ethane contains 2 carbon atoms) and compare it with the number of hydrogen atoms:
4.132 × 10^23 carbon atoms / 2 = 2.066 × 10^23 molecules of C2H6
Since the number of carbon atoms is half the number of molecules, we can conclude that there are 2.066 × 10^23 molecules in 0.694 moles of C2H6.
Understanding the concept of the mole is crucial for many aspects of chemistry, including reactions, stoichiometry, and determining the amounts of substances involved in chemical equations. Being able to calculate the number of molecules in a given number of moles allows scientists and chemists to make accurate judgments about the quantities of substances involved in chemical reactions.
In conclusion, when given 0.694 moles of C2H6, we can calculate the number of molecules by using Avogadro's number and the molecular formula of ethane. By performing the necessary calculations, it was determined that there are approximately 2.066 × 10^23 molecules in this quantity of C2H6. This demonstrates the importance of the mole as a fundamental unit in chemistry and its ability to provide accurate information about the quantities of substances involved in chemical reactions.
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