A) mass / volume = density
m/6.00cm3 = 13.5939g/cm3
m = 13.5939g/cm3 • 6.00cm3
m = 81.6g
B) mass / volume = density
m/25.0cm3 = 0.702g/cm3
m = 0.702cm3 • 25.0g/cm3
m = 17.6g
1mL = 1cm3
The reason does FeCl3 serve in the electrophilic sweet-smelling substitution response amongst chlorine and benzene is that it fills in as a Lewis corrosive impetus by responding with the Cl2 and along these lines actuates it toward assault by benzene's π electrons.
Answer:
1360.0 g/mol
Explanation:
If there is one atom of cobalt in every molecule of cyanocobalamin its chemical formula must be
CoX₂, so there is 1 mol of cobalt for 1 mol of the compound. The molar mass of the cobalt is 59 g/mol. So, there is 59 g of cobalt in 1 mol of the cyanocobalamin and it represents 4.34% of the total mass, so:
0.0434m = 59
m = 1359.45 g of cyanocobalamin
The molar mass of the molecule is the mass divided by the number of moles (which is 1), so it is:
M = 1359.45 g/mol = 1360.0 g/mol
Compounds often differ from elements.
