Why does lemon make green tea go clear?
There’s probably two reasons for this. The first one is that the lemon is acidic and so it’s affecting the pH of your tea and it may be that it’s causing changes in the chemicals that are in your tea and making them change to a different colour. So, like you can make indicator paper and change colour with different acids or bases and I think also, certainly down the south, we have a lot of limescale which is calcium carbonate in our water and it can make your tea cloudy. So, if you put in an acid, it will help to dissolve the calcium carbonate in it so it makes it go clearer.
Monday, March 29, 2010
Why does lemon make green tea go clear?
Monday, December 7, 2009
What happens in scientific terms in a reaction between acid rain and limestone?
What happens in scientific terms in a reaction between acid rain and limestone?
Limestone is mostly made up of the mineral calcium carbonate ( CaCO 3 ) this is not very soluble so the rocks don't dissolve very quickly. If you add an acid however you add Hydrogen Ions ( H+ ) which will react with the carbonate to form hydrogen carbonate HCO3- ions which are very soluble in water, and the limestone will dissolve. Or if there is more acid about the two Hydrogen ions will react with a carbonate to form H2CO3 which will decompose to form carbon dioxide CO2 and water H2O.
The acid can come from a variety of sources sulphur and nitrogen oxides released by burning fuels will form sulphuric and nitric acids, can carbon-dioxide can dissolve in water to form carbonic acid.
Tuesday, November 3, 2009
Why does lemon make green tea go clear?
Why does lemon make green tea go clear?
There’s probably two reasons for this. The first one is that the lemon is acidic and so it’s affecting the pH of your tea and it may be that it’s causing changes in the chemicals that are in your tea and making them change to a different colour. So, like you can make indicator paper and change colour with different acids or bases and I think also, certainly down the south, we have a lot of limescale which is calcium carbonate in our water and it can make your tea cloudy. So, if you put in an acid, it will help to dissolve the calcium carbonate in it so it makes it go clearer.