A60-gram sample of licl · h 2 o is heated in an open crucible until all of the water was driven off. what is the total mass of licl remaining in the crucible

42.11 g

Explanation:

Mass of the hydrated salt = 60 g

The moles of the hydrated salt is :

Amount = 60 g

Molar mass of = 60.4093 g/mol

The formula for the calculation of moles is shown below:

Thus, moles are:

After heating only LiCl remains in the crucible. So,

Moles of LiCl = 0.9932 moles

Molar mass of = 42.394 g/mol

The formula for the calculation of moles is shown below:

Also, mass is

Total mass of LiCl remaining in the crucible = 42.11 g

b

explanation:

mitosis

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.