Energy. Energy cannot be destroyed nor created only transformed into different forms of energy.
The hydrate form of CuSO4 has 5 water molecules (CuSO4-5H20) copper (II) Sulfate pentahydrate or commonly known as blue vitriol.
To solve, the following molar masses are to be known.
CuSO4.5H2O (hydrate) - 249.7g/mole
CuSO4 (anhydrous) -159.6g/mole
Also there molar ratio of the hydrate and CuSO4 is 1.
the mass of the hydrate is to be divided by the molar mass of the hydrate then multiplied by the ratio (1) to get the moles of hydrate and multiplied by the molar mass of the anhydrous to get the mass in grams.
moles = (100g/249.7)*1 = 0.4 moles hydrate
grams = 0.4*159.6 = 64.9 grames hydrate
A). The weaker the IMF the lower the evaporation rates of each liquid. So Pentane had the weakest IMF and Butanol has the strongest.
b).They all evaporate at different rates because of their differences in their bonds. Not all liquids are the same and they will all most likely evaporate at different times
Answer: 249 grams
Explanation:
The balanced chemical equation is :
As water is present in excess , it is called as excess reagent and ethylene is the limiting reagent.
According to stoichiometry:
1 mole of ethylene produces = 1 mole of ethanol
Thus 5.40 mole of ethylene produces =
mole of ethanol
Mass of ethanol = 
Thus 249 g of ethanol are produced from 5.40 mol of ethylene
