Empirical formula is calculated as follows
calculate the moles of each element, that is % composition/ molar mass
molar masses ( Si= 28.09g/mol , Cl= 35.5 g/mol, I=126.9 g/mol)
moles of silicon = 7.962/28.09g/mol= 0.283 moles
moles of chlorine = 20.10 / 35.5g/mol = 0.566 moles
moles of iodine= 71.94 / 126.9 g/mol= 0.567 moles
divide each mole with smallest mole (0.283)
that is silicon = 0.283/0.283= 1 mole
chlorine = 0.566/0.283= 2 mole
Iodine= o.567/0.283= 2 moles
empirical formula is therefore= SiCl2I2
Answer:
I believe- If there is more metal for the magnet to reach for, then the strength will grow but it may be harder to pick up off of a surface depending on the weight of the nail. If it is a light nail, it would be more efficient for a quick result in having the magnet to pick it up
Explanation:
It is definitely a molecule
It should be 2.7 mol if I"m correct
Answer:
The answer to your question is Pressure 1 = 1.73 atm
Explanation:
Data
Volume 1 = 5 l
Pressure 1 = ?
Volume 2 = 12 l
Pressure 2 = 0.72 atm
Process
To solve this problem use Boyle's law to solve this problem
Pressure 1 x Volume 1 = Pressure 2 x Volume 2
-Solve for Pressure 1
Pressure 1 = Pressure 2 x Volume 2 / Volume 1
-Substitutiion
Pressure 1 = 0.72 x 12 / 5
-Simplification
Pressure 1 = 8.64/5
-Result
Pressure 1 = 1.73 atm
