Molar Mass / Molecular Weight of CH4 (Methane)
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11 سال پیش
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Explanation of how to find
Explanation of how to find the molar mass of CH4: Methane.
A few things to consider when finding the molar mass for CH4:
make sure you have the correct chemical formula.
always include the units for molecular weight (grams/mole).
make sure you do the math right - follow the order of operations.
Watch: Molar Mass in Three Easy Steps: How to Calculate Molar Mass (Molecula...
Note that molecular weight, molar mass, and gram formula mass are essentially the same concept.
Periodic Table Image from: https://commons.wikimedia.org/wiki/Fi...
Mole & Stoichiometry Playlist: Moles, Grams, and More (Stoichiometry)
Finding the Molar Mass (sometimes called Molecular Weight although the units are different) of a compound is a essential skill for the chemistry topic of stoichiometry and the first step in converting from moles to grams (or grams to moles).
For more chemistry help visit http://www.Breslyn.org .
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Using the Periodic Table look up the atomic weight of each of the elements in CH4. In most cases is it appropriate to round to two decimal places when finding the molecular weight for CH4 (unless you were told to do otherwise). For molar mass for CH4 (molar mass and molecular weight are the same thing) just add up the two atomic weights.
After finding the atomic mass for each element multiply each by the subscript in the chemical formula. To find the molecular weight of CH4, add these numbers up (make sure to multiply before adding!). The units of molecular weight are grams/mole or g/mol.
A few things to consider when finding the molar mass for CH4:
make sure you have the correct chemical formula.
always include the units for molecular weight (grams/mole).
make sure you do the math right - follow the order of operations.
Watch: Molar Mass in Three Easy Steps: How to Calculate Molar Mass (Molecula...
Note that molecular weight, molar mass, and gram formula mass are essentially the same concept.
Periodic Table Image from: https://commons.wikimedia.org/wiki/Fi...
Mole & Stoichiometry Playlist: Moles, Grams, and More (Stoichiometry)
Finding the Molar Mass (sometimes called Molecular Weight although the units are different) of a compound is a essential skill for the chemistry topic of stoichiometry and the first step in converting from moles to grams (or grams to moles).
For more chemistry help visit http://www.Breslyn.org .
---
Using the Periodic Table look up the atomic weight of each of the elements in CH4. In most cases is it appropriate to round to two decimal places when finding the molecular weight for CH4 (unless you were told to do otherwise). For molar mass for CH4 (molar mass and molecular weight are the same thing) just add up the two atomic weights.
After finding the atomic mass for each element multiply each by the subscript in the chemical formula. To find the molecular weight of CH4, add these numbers up (make sure to multiply before adding!). The units of molecular weight are grams/mole or g/mol.
11 سال پیش
در تاریخ 1392/07/14 منتشر شده
است.
73,227
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