Tag: aqueous-solution

everyday chemistry – Why did the Rio 2016 pool water turn green?

The Question : 27 people think this question is useful One of the swimming pools at Rio 2016 Olympics has turned green: While proliferation of algae is a likely culprit, there have been some alternative explanations offered by local organizers. CNN has the following quote from a Rio 2016 official: A change in alkalinity Mario

aqueous solution – Are all NO3- salts soluble in water? If so, why?

The Question : 27 people think this question is useful All the examples of $\ce{NO3-}$ salts are soluble in water (all that I know about). Is it always so or there is some salt which doesn’t dissolve in water? If so what is the reason behind it? The Question Comments : The Answer 1 23

thermodynamics – Why do salts such as NaCl dissolve?

The Question : 27 people think this question is useful If we look at solubility of salts in water, we are told that they disassociate, because the positive $\ce{Na}$ ion is attracted to the partially negative oxygen in water and the negative $\ce{Cl}$ is attracted to the partially positive hydrogen. But why does this happen?

ions – Why is silver chloride less soluble than silver nitrate?

The Question : 27 people think this question is useful Related: Reaction between silver nitrate and aluminum chloride Experimentally, $\ce{AgCl}$ is insoluble in water, but $\ce{AgNO3}$ is soluble. They’re pretty common in a lab (well, $\ce{AgCl}$ is a common precipitate)–so I think most of us know this. By Fajan’s rules, on the other hand, larger

aqueous solution – Why is water “the universal” solvent?

The Question : 28 people think this question is useful This is an old question that our textbook tried to answer but worsened the situation. Many things are soluble in water. So many, that studying solutions will always require studying aqueous ones. It is true that many non-polars like waxes are not very soluble in

inorganic chemistry – Which “exotic salt” can lower water’s freezing point by 70 °C?

The Question : 36 people think this question is useful The Medium.com article Mars Phoenix Lander, 10 Years Later shows several remarkable images and discoveries on Mars by the Mars Phoenix Lander circa 2008. One image (shown below) shows what looks like droplets of liquid water, condensed on the surface of one of the lander’s

everyday chemistry – Why doesn’t frozen sugar solution taste sweet?

The Question : 48 people think this question is useful I’ll try to make this as brief as possible: Dissolved two teaspoons of table sugar (sucrose) in about 250ml water. Sipped it, and as expected it tasted sweet. I let the rest of it sit in the freezer overnight. Next day, I took out the