What is the maximum amount of potassium nitrate (kno 3) that can dissolve in 100 grams of water at 40°c?

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What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Calculate the number of molecules present in 0.750 mol of mgo.