what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)?
(1)0.806
(2)1.24
(3)2.48
(4)5.16
please help !
You do realize people get the same homework questions right lmao.
the answer is 2
To find the total number of moles in a given mass of a substance, you can use the formula:
moles = mass / molar mass
In this case, the mass of C2H5Cl is given as 80.0 grams, and the molar mass is given as 64.5 grams/mole.
To calculate the number of moles of C2H5Cl, divide the given mass by the molar mass:
moles = 80.0 grams / 64.5 grams/mole
By performing the division, we find that the number of moles is approximately 1.24 moles.
Therefore, the correct answer is (2) 1.24.