you have 1.2 mol of sodium chloride. how many grams of this​

Chemistry · Middle School · Thu Feb 04 2021

Answered on

To determine the mass in grams of 1.2 moles of sodium chloride (NaCl), you need to know its molar mass. The molar mass of a compound is the mass of one mole of that compound and is the sum of the molar masses of all the atoms in the molecule.

The atomic mass of sodium (Na) is approximately 22.99 g/mol, and the atomic mass of chlorine (Cl) is approximately 35.45 g/mol. The molar mass of sodium chloride (NaCl) can be calculated by adding the molar masses of sodium and chlorine:

Molar mass of NaCl = Atomic mass of Na + Atomic mass of Cl Molar mass of NaCl = 22.99 g/mol + 35.45 g/mol Molar mass of NaCl = 58.44 g/mol

Now that the molar mass is determined, multiply it by the number of moles to find the mass in grams:

Mass of NaCl = Molar mass of NaCl x Number of moles of NaCl Mass of NaCl = 58.44 g/mol x 1.2 mol Mass of NaCl = 70.13 grams

So, 1.2 moles of sodium chloride is equal to 70.13 grams.