The molar mass of cupric chloride is 134.45g/mol. What is the mass, in grams, of 8.19*10^-3 mol of this compound?
(134.45 g/mol) x 8.19E-3 mol = ?? g
Note the unit of mol cancels, leaving grams.
To find the mass in grams of a compound, you can multiply the number of moles by the molar mass of the compound.
First, convert the given amount of moles to grams:
Molar mass of cupric chloride = 134.45 g/mol
Number of moles = 8.19 * 10^-3 mol
Calculating the mass in grams:
Mass (in grams) = Number of moles * Molar mass
Mass (in grams) = 8.19 * 10^-3 mol * 134.45 g/mol
To calculate this, you need to multiply 8.19 * 10^-3 by 134.45. Let's break it down:
8.19 * 10^-3 * 134.45 = (8.19 * 134.45) * 10^-3
Now, multiply 8.19 by 134.45:
8.19 * 134.45 = 1101.6655
The result is 1101.6655. Now, multiply it by 10^-3:
1101.6655 * 10^-3 = 1.1016655
So, the mass of 8.19 * 10^-3 mol of cupric chloride is approximately 1.1016655 grams.