What Is IER?

What Is IER?One of the biggest questions I get asked when I teach students how to write chemistry essays is 'What is IER?' There is no real definition for this term, so it is best to let students use their own interpretation for what this term means. However, there are certain key points to remember.IER stands for 'It is Okay to Use Exact Substitution' and it is a common process used by chemists. IER takes a chemical formula, such as 'pH=7.00' and replaces the naught with the razzle and then substitutes the other elements with other elements.IER is simply a process that all good chemists know about and is used by almost every chemist out there. The point of IER is that because it is an exact substitution, all changes made to the original formula must be identical.So, what is IER? Well, the formula has to have the same number of non-replaced letters and be exactly one-hundred percent identical to the original formula. Therefore, if a formula is written with two carbon atoms, one carbo n and one oxygen, then the number of the carbon in the original formula must match the number of the carbon atoms in the new formula. For example, using 'C2H5O2' as an example, the carbon in the original formula must match the number of the carbon in the new formula.If you are using IER in your chemistry essay, then you will notice that there are many criteria that must be met for a formula to meet the criteria for IER. Any chemical formula that has two non-replaced letters must be at least one hundred percent identical to the original formula. Therefore, if your original formula has 'C2H5O2' then the '2' must be replaced with 'O' or some other letter, and the 'H' must be replaced with 'I' or some other letter.In addition, if you are using IER in your chemistry essay, then you must make sure that the number of carbon atoms in the original formula is the same as the number of carbon atoms in the new formula. Otherwise, the formula will not be considered for IER. This criterion is bas ed on how chemical formulas are derived from the parent elements. For example, if a formula has two hydrogen atoms and one oxygen atom, then the formula cannot be IER.IER is a very important process that all chemists know about, and is used by almost every chemist out there. Therefore, don't hesitate to use IER to make sure that your chemistry essay hits the high marks. It's an excellent way to make sure that your chemistry essay stays at the top of the class.