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Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
#questio
You are given a sample block of an unknown metal. The block displaces 3.24 mL of water and has a mass of 62.5429 g. What is the density of the unknown metal? What is the metal?
explain individual test
Calculation of empirical formula The steps included in the calculation are as follows, (a) Divide the percentage (%) of each element by its atomic volume. This gives th
observation reaction of alcohol and phenol with sodium hydroxide
N2O5
what is radiometric titration
given that ksp of MG(OH)2 is 0.000000000089,calculate the solubility of Mg(OH)2 in a solution buffered at pH=9
what do mean by colloids
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