Mg(oh)2 is a sparingly soluble salt with a solubility product, ksp, of 5.61×10−11. it is used to control the ph and provide nutrients in the biological (microbial) treatment of municipal wastewater streams. what is the ratio of solubility of mg(oh)2 dissolved in pure h2o to mg(oh)2 dissolved in a 0.180 m naoh solution? express your answer numerically as the ratio of molar solubility in h2o to the molar solubility in naoh.

The ration of the molar solubility is 165068.49.

Explanation:

The solubility reaction of the magnesium hydroxide in the pure water is as follows.

Initial      0          0

Equili     +S       +2S

Final      S          2S

Solubility of in 0.180 M NaOH is a follows.

Initial      0          0

Equili     +S       +2S

Final      S          2S+0.180M

Therefore, The ration of the molar solubility is 165068.49.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

your answer is c) plasma

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