Ahydrated form of copper sulfate (cuso4⋅xh2o) is heated to drive off all of the water. if there is initially 9.42g of hydrated salt and there is 5.26g of anhydrous cuso4 after heating, find the number of water molecules associated with each cuso4 formula unit.

CuSO₄. 7 H₂O

Explanation:

Given data:

Mass of anhydrous CuSO₄ = 5.26 g

Mass of hydrated CuSO₄ = 9.42 g

Number of water molecules associated with CuSO₄ = ?

Solution:

Mass of water =  9.42 g - 5.26 g = 4.16 g

Number of moles of water = mass/ molar mass

Number of moles of water =  4.16 g/ 18 g/mol

Number of moles of water =  0.23 mol

Number of moles of CuSO₄:

Number of moles  = mass/ molar mass

Number of moles  =  5.26 g/ 159.61 g/mol

Number of moles =  0.033 mol

Number of moles of water per mole of CuSO₄:

Number of moles of water/ number of moles of CuSO₄

0.23 mol/ 0.033 mol

7 moles

CuSO₄. 7 H₂O

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).