Chemistry Tutorials and Help
The following two websites provide excellent notes, explanations, and problem solving videos to help you understand how to solve empirical and molecular formula problems: Empirical and Molecular Formulas Notes and Continue Reading →
Write formulas for the following mixed compounds: 1.) Phosphorous pentachloride 2.) Aluminum nitrite 3.) Nitrous acid 4.) Tin (II) sulfate 5.) Tin (IV) sulfate 6.) Trisulfur hexoxide 7.) Carbonic acid Continue Reading →
Set # 1: First, classify each compound as ionic, covalent (molecular), or acid. Then, name the compounds. BaCrO4 HF N2O4 CCl4 CuO HClO4 Na2O CoCl2 Ca(OH)2 SiO2 Mixed Compounds #1 Continue Reading →
Naming Compounds: 1. If the acid is binary (just 2 elements) write: Hydro – nonmetal stem – ic acid 2. If the acid contains a polyatomic ion, change the ending Continue Reading →
Writing Formulas: 1. Write H as first part of the formula 2. Identify the second part by whether it has hydro- in the name or not. Do step 3 or Continue Reading →
Naming Compounds: 1. Write the first nonmetal’s name using the subscript to assign a prefix. If there is not a subscript then there is no prefix. 2. Write the second Continue Reading →
Writing Covalent Formulas: 1. DO NOT look at oxidation #’s!!! 2. For the first part of the formula write the first nonmetal’s symbol and use the prefix to determine its Continue Reading →
Writing Formulas From Name 1. Write the metal’s symbol or ammonium’s formula as the first part of the formula. 2. Obtain the charge for the metal from the periodic table Continue Reading →
Naming Ionic Compounds from Formulas 1. Write metal name or ammonium as the first part of the name 2. Look at the second part of the formula and decide if Continue Reading →