Mass finder science9/21/2023 ![]() Step 4: Add the individual atomic masses of C, H, and O multiplied with their number of atoms accordingly, then you get 342.297 as the molar mass of Sucrose.Step 3: Since there are multiple atoms of each element, we need to multiply them accordingly:.Step 2: From the periodic table, the atomic masses of C is 12.0107 grams per mole, H is 1.00794 grams per mole and O is 15.9994 grams per mole.Step 1: Sucrose has 12 atoms of Carbon, 22 atoms of Hydrogen and 11 atoms of Oxygen.Step 4: Add the individual atomic masses of Na and Cl, which gives 58.44276 grams per mole, which is the molar mass of NaCl.Įxample 2: Calculate the molar mass of sucrose (C 12H 22O 11).Step 3: There are no multiples of either Na or Cl in the formula of NaCl.Step 2: From the periodic table, the atomic mass of Na is 22.98976 grams per mole and the atomic mass of Cl is 35.453 grams per mole.Step 1: NaCl has one atom of sodium and one atom of Chlorine.Let us understand the calculation of molar mass through some examples:Įxample 1: Calculate the molar mass of NaCl. Step 4: Add all the individual masses, thus obtained to arrive at the final molar mass of the substance.Step 3: In case, any element is present more than once in the compound, multiply its atomic mass by that number.Step 2: Look up into periodic table and get the atomic masses of individual elements.Step 1: Break down the formula of the compound into individual elements.The steps involved in the calculation of molar mass are given below: Simply stating, molar mass can be calculated by adding the atomic mass of the total number of individual elements present in the given compound. The knowledge of molar mass is quintessential in studying the properties and reactions involved with various chemical compounds. Though the measurement of chemical substance involves grams, the final unit of molar mass is grams per mole. Hence, the reason we talk about ‘molar’ mass of a given chemical substance. This is where a uniform terminology surrounded by moles comes into great help. This sounds little out of concept while dealing with intricate reactions. We cannot say heavier item or denser item when it comes to chemistry and reactions. The concept of molar mass eases comparison of two chemical substances. This concept of the mole is like a bridge between atomic chemistry and the physical chemistry that chemists deal in laboratories.Ī mole is the amount of a given substance that contains 6.023 x 1023 of its particles. Why? A mole is a standard unit which is used to compare any two compounds or substances and helps in performing calculations easily. Though atom is the fundamental unit of a substance, in chemistry, it is the term ‘mole’ that is used for all calculations. ![]()
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