To deduce the empirical formula of a compound, you need the ratio of the moles of each element, and you find that by using the percents of the element as the element’s mass.
As an example, if a compound is 16% Carbon and 84% sulfur, you can say that if you had a 100 gram sample of the compound, it would contain 16 grams of carbon & 84 grams of sulfur.
To find the moles of carbon in that sample, you would divide the mass by the of carbon, so 16/12 = 1.3 moles. You do the same calculation with the other . For Sulfur, you divide 84g by the atomic mass of sulfur, so 84/32 = 2.6moles of sulfur. You continue in this same way if there is more than 2 elements.
Finally you find the ratio of the moles of each element. The simplest way to do this is to find the element with the least number of moles and divide the other moles by that number. In the above example 2.6 moles of Sulfur divided by 1.3 moles of Carbon equals 2. (which is a 2:1 ratio) So there is twice as many sulfurs as carbons in this compound, and the empirical formula is CS2.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more