Apr 24, 2017· General chemistry can be confusing and tedious, but if you break down some of the concepts, they are much easier to understand. Molar mass is the weight of one mole of any given element or compound. The molar mass of a compound is always expressed in grams per mole, a mole being 6.02 x 10^23 molecules.
Aug 30, 2014· Here's one way to do it. > Example Concentrated hydrochloric acid is usually available at a concentration of 37.7% by mass. The density of the solution is 1.19 g/mL. What is its molar concentration? Solution Step 1. Calculate the mass of 1 L of solution.
Apr 26, 2018· How to Convert From Moles Per Liter to Percentage . Multiply the atomic mass by the number of the respective atoms in the molecule, and then sum up the products to calculate the molar mass In this example, the molar mass of KCl is 39 x 1 + 35.5 x 1 = 74.5.
How to calculate molar mass with examples. We'll go through three examples progressing from easy to "difficult". By the end of this post, you'll be able to calculate the molar mass of anything. Example #1: Single element. Sodium (Na) Finding the molar mass of a single element is really simple.
May 29, 2013· Mass percent tells you the percentage of each element that makes up a chemical compound. Finding the mass percent requires the molar mass of the elements in the compound in grams/mole or the number of grams used to make a solution. It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution).
Oct 21, 2010· How to Calculate Molar Mass. Atoms are too small to allow meaningful measurement of chemical substances. To work with meaningful amounts of substances, scientists group them into units called moles. A mole …
Jan 10, 2012· Online Molar Mass and Mass Percentage Calculator. Here are some links to some useful online calculators/programs to calculate the molar mass of a compound and the mass percentage of each of its elements. Molar Mass & Mass Percentage Calculator, with Common Compounds already listed
To calculate molarity, you may have to use conversion factors to move between units. For example, if you're given the mass of a solute in grams, use the molar mass (usually rounded to two decimal places) of that solute to convert the given mass into moles.