| Author | Message | ||
     marat Unregistered guest |
I am just wondering if one took 2 blocks of ice(same mass and size) and put them in the same room, relatively close so there wouldnt be much of a temperature difference. Then on the first block a certain amount of an acid-water solution was to be poured, while on the other, the same amount of water(same temp.) as the acid solution was to be poured. Which one of the ice blocks would melt faster, or would it not make a difference. 1)If there would be a difference in melting speeds how would it be explained in terms of molecular structure? 2)Would changing the amount of acid in the solution make a difference? 3)Same experimental setup but using a base instead of an acid, same questions 4)Thank you for your time and thoughts | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 569 Registered: 12-2004 |
Try it and see. | ||
| Marat Orazov (Marat_o) Junior Member Username: Marat_o Post Number: 5 Registered: 6-2005 |
aah, however I do not posses the necessary materials to complete a controlled experiment These are the things that i dont have: 1) a thermometer 2) a potent acid solution 3) a potent base solution 4)  a microscope powerful enough to show me the molecular structure and its changes hence I was compelled to ask the experts | ||
| Arthur Yip (Peregrineay) Junior Member Username: Peregrineay Post Number: 6 Registered: 4-2005 |
1) if you place both samples in the same room, and both buckets? of liquid in the same room, you don't necessarily need a thermometer, even though they should be relatively easy to obtain 2+3) drano and window cleaner can be quite potent, you don't even have to make it solution 4) try it first and try to theorise the molecular changes (if any), because atoms are quite impossible to be shown, they are only in theory | ||
| Marat Orazov (Marat_o) Member Username: Marat_o Post Number: 20 Registered: 6-2005 |
Ok well, I tried the experiment twice, to try to eliminate experimental errors, however I think the experiment still contained a ton. And yes the acid does seem to accelerate the rate of melting. My theory about the effect of the acid is: 1)Hydronium gets into the crystal lattice of the ice 2)Because of it extra charge or abnormal shape, relative to H2O, it tears the the latice apart or causes some abnormaility in the patern 3)If the lattice was damaged, the H2O molecules are no longer confined to the space they before and start to move around as they do in a liquid, thus melting. I have not tried this with a basel, but I imagine the outcome would be the same. | ||
| Marat Orazov (Marat_o) Intermediate Member Username: Marat_o Post Number: 21 Registered: 6-2005 |
aah In the last sentence I meant base not "basel" | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 629 Registered: 12-2004 |
I suspect what you are seeing is the same effect as adding salt to the ice, which I explained in the chapter on making ice cream. | ||
| Marat Orazov (Marat_o) Intermediate Member Username: Marat_o Post Number: 26 Registered: 6-2005 |
Yes I though of something among those lines, when you say the ions form weak chemical bonds, do you mean van der Waal forces, or something like amonia gaining a hydrogen atom to form amonium? P.S. I am going to have to make that ice cream now |
