If you’re currently unsure of how to accurately go about calculating the empirical formula for any given compound, simply continue reading to discover a simply guide to follow. So that you’ll easily be able to calculate the empirical formula for any compound such as our example compound, which is c8h18.
What is an empirical formula:
The term empirical formula is used to express a single compound as its whole number of individual atoms, for each element which is contained in a compound. It’s important to note that each compound will boast a different empirical formula to its molecular formula. So you shouldn’t expect the two formulas to be identical or to give the same exact result.
If you’re confused, remember that a compound’s molecular formula refers to the whole number of atoms in a single molecule. Which should be relatively easy to remember.
The reason why the term empirical formula has the name empirical in it, is that every empirical formula has been determined by using scientific data which has been conducted on each scientific compound.
The empirical formula for c8h18:
If you’re looking to discover the empirical formula for any compound such as c8h18, you must follow the instructions below. In order to find an accurate answer. Better yet if you continue reading the entire article listed below, you’ll also discover c8h18’s connection with the chemical compound octane.
Start off with listing the number of grams of each individual element which is found in the compound which you’re investigating.
Next, in turn convert the mass of each individual element in your compound to moles. To do this you may need to study molar mass, which you’ll conveniently find on any periodic table.
Once you’ve successfully completed step 2, you’ll need to divide each of your mole values by the smallest number of moles which you have calculated.
Your last job is to round the number which you get to the nearest whole number. Your answer is the empirical formula for your given compound such as the example compound c8h18.
Once you’re familiar with this particular formula, you’ll be able to work out the empirical formula of any scientific compound.
What is the empirical formula for the octane:
You may be interested to read that the empirical formula for octane is c8h18. Which is the example of a compound which has been used throughout this article.
What is octane?
If you’re unfamiliar with octane, the term simply refers to a relatively common chemical compound which refers to a hydrocarbon which is paired with alkane and features a highly complex structural formula. Which is normally simplified to c8h18.
You may have come across the term octane at a gas station where each different fuel that you’ll come across will have a different octane number such as unleaded 98, 95 or 91.
After reading the article above, you should now have no issues calculating the empirical formula for any compound, that you’re interested in studying further. As you can always refer back to this easy to understand guide for reference.