akcapr Posted March 31, 2005 Share Posted March 31, 2005 For biology im doing an experiment and i decided to investigate the effects of acid rain on plant. Im not sure but i may be using strawberry for my experiment. Im goin to spray the acid rain onto the plant with a sprayer, and then add some to the soil. My question is what ph's should i use for this experiment (im goin to use 4 different ph's)? Im not sure because i do not know what concentration will kill it and which wont. I want my experiment to show obvious data, in other words, i want to see the effects from the acid on the plant, the best efect would be to have one of the acididities kill the pant right at the end, not instantly, but gradually. Im going to use a mixture of nitric acid and sulfuric, and m going to water the plants with this acid rain every three days for 5 weeks. And feedback will be GREATLY appreciated. Thanks! Link to comment Share on other sites More sharing options...
Phi for All Posted March 31, 2005 Share Posted March 31, 2005 I've heard that light acid rain (pH 5.5) can actually be beneficial to strawberries, tomatoes and corn. Soybeans are affected more adversely. You may want to start at pH 5.5. Btw, don't post the same thread in multiple forums. If we don't get you some good answers here, ask and a Mod will move it into Biology for a while. We just don't want to confuse the community. Thanks. Link to comment Share on other sites More sharing options...
akcapr Posted March 31, 2005 Author Share Posted March 31, 2005 any more ideas? Link to comment Share on other sites More sharing options...
Phi for All Posted March 31, 2005 Share Posted March 31, 2005 I've heard acid rain can get as bad as pH 1.7, but I'm not sure your plant would survive till just before the 5 weeks were up. Perhaps you could do a 2-day test for the effects of what is essentially battery acid on a single plant. This might help you set your parameters. Link to comment Share on other sites More sharing options...
ed84c Posted March 31, 2005 Share Posted March 31, 2005 Also think about the main problem with acid rain; It dissolves Al ions that are poisonous to life. Will this be included in your experiment? Link to comment Share on other sites More sharing options...
akcapr Posted March 31, 2005 Author Share Posted March 31, 2005 im not specificially gonna add it, i hope it will be included in the soil. Link to comment Share on other sites More sharing options...
YT2095 Posted March 31, 2005 Share Posted March 31, 2005 it`s not the PH it`s the molarity that needs to be correct, and it`s not Sulphuric, it`s Sulphurous acid that needs to be used. Link to comment Share on other sites More sharing options...
akcapr Posted March 31, 2005 Author Share Posted March 31, 2005 you are mistaken, its sukfuric. go here: http://www.encyclopedia.com/html/a1/acidrain.asp theres alot more places that talk about it Link to comment Share on other sites More sharing options...
ed84c Posted March 31, 2005 Share Posted March 31, 2005 Yeh i read that SO2 oxidises into SO3 from Nitrous Oxides, and then dissolves and Forms H2SO4, on more than one occasion. Link to comment Share on other sites More sharing options...
ecoli Posted April 1, 2005 Share Posted April 1, 2005 Carbonic acid is also one type of acid that can be found in acid rain. You chould probably use low molarity acids, you want to avoid acid burns... Don't forget to set up a control...mist the control plant with just water. Link to comment Share on other sites More sharing options...
akcapr Posted April 1, 2005 Author Share Posted April 1, 2005 ya i have the experiment perfectly set up- i just need to kno 4 good phs to test with good results! Link to comment Share on other sites More sharing options...
YT2095 Posted April 1, 2005 Share Posted April 1, 2005 so you`re not attempting to make your own acid rain then (for accuracy)? Link to comment Share on other sites More sharing options...
ed84c Posted April 1, 2005 Share Posted April 1, 2005 How about 2, 3, 4 and 5? Link to comment Share on other sites More sharing options...
akcapr Posted April 1, 2005 Author Share Posted April 1, 2005 i hope those work. and yes i am making my own "accurate" acid rain Link to comment Share on other sites More sharing options...
YT2095 Posted April 5, 2005 Share Posted April 5, 2005 what method of dispersal will you be using? and what atmosphere will they be in? and what soil type? I`m interested in your method of "Accuracy" Link to comment Share on other sites More sharing options...
akcapr Posted April 5, 2005 Author Share Posted April 5, 2005 soil will be potting soil I will disperse it first onto leaves with a spray bottle, then to the soil. And do this every 3 days or so. The atmosphere will be in m house. Not terribbbly accurate, but it will do for a 10th grade project. Link to comment Share on other sites More sharing options...
akcapr Posted April 5, 2005 Author Share Posted April 5, 2005 it`s not the PH it`s the molarity that needs to be correct, and it`s not Sulphuric, it`s Sulphurous acid that needs to be used. about the molarity, why would i use it and how? what molarities would be best? Link to comment Share on other sites More sharing options...
akcapr Posted April 6, 2005 Author Share Posted April 6, 2005 i nneeed a response by april 6 tomorrow!! after school i have to make the solutions (like 2:00) so any tips i need as soon as possible. thx =) Link to comment Share on other sites More sharing options...
ecoli Posted April 7, 2005 Share Posted April 7, 2005 about the molarity, why would i use it and how? what molarities would be best? By changing the concentration of the acid. Putting more water into the acid would decrease the molarity, and visa versa, you're school's chem teacher should be able to help you with this. Ask him/her about making dilutions. Link to comment Share on other sites More sharing options...
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