A1.547 g sample of blue copper(ii) sulfate pentahydrate, ‍ , is heated carefully to drive off the water. the white crystals of that are left behind have a mass of g. how many moles of ‍ were in the original sample? show that the relative molar amounts of and ‍ agree with the formula of the hydrate.

Explanation:

Hello,

By developing the following stoichiometric relationship, the required amount could be found as follows:

- Moles of :

- Grams of

- Moles of water:

Finally, one could see that the mass of the anhydrous compound is less than the pentahydrated compound since it is waterless.

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.