it is a formula unit
The formula corresponding to the name given is CuCl2. 4 H2O.
The experimental procedure for determining the formula for a hydrate that the formula for a hydrate is figured by the prefix and the number of water molecules that are in the compounds. For example is a prefix of di- and two water molecules. The formula is CaCl2 * 2H2O. The name for this is Calcium chloride dihydrate.
This formula is CaCl2.7 H2O
There is more than one hydrate. If you are dealing with the dihydrate it is CoCl2 2H2O than it is blue (sorry but the keyboard won't let me put the 1st and last 2 as subscripts nor allow the dot between the two "2"s, similar to the dot used when you multiple 2x3=6 and don't want to use the letter x. This is what is used to make the test strips we give in labs. If you are dealing with the hexahydrate it is CoCl2 6H20 and this is seen as the pink colour of the test strip once exposed to water.
Yes, CoCl2 * 6H2O is the hexahydrate of the an hydrate CoCl2.
Formula: CoCl2
CoCl2
CoCl2
it is a formula unit
CCl4 ============ ( you might get away with monocarbon, but that seems clumsy to me )
The formula name of a hydrate barium chloride and water is : BaCI2.2H2O
The formula corresponding to the name given is CuCl2. 4 H2O.
XXXXX.yH2O
A hydrate formula contain the chemical formula and the number of associated water molecules.Example: magnesium sulfate, MgSO4.7 H2O.
Formula: CuSO4.nH2O
CoCl2 cobaltous chloride or cobalt(II) chloride