What effect does sodium carbonate have on caffeine when added to a concentrated black tea?
Sodium carbonate (Na2CO3), NaOH and Sodium bicarbonate (NaHCO3) are all bases used to deprotonate compounds, this makes the compound ionic and will be soluble in water (and normally insoluble in the organic compounds such as methylene chloride, CH2Cl2) I remember from this lab myself that you needed to add the base to deprotonate an impurity (tannins) to prevent it from being extracted with the caffeine in CH2Cl2 If you are a visual learner I found a pdf on google for a flow chart of this process (94KB): http://employees.oneonta.edu/knauerbr/chem226/226expts/226_expt06_pro.pdf Bottom of page 2 Questions: 1. Caffeine will not deprotonate (see pdf), the base has no affect on it's solubility in CH2Cl2, or insolubility in H2O 2. CH2Cl2, caffeine is not soluble in H2O 3. Na2CO3 deprotonates acids (tannnins), thus affects solubility in H2O and CH2Cl2 (see above) 4. redundant question
Can I eat guava when I have kidney stones?
I have not seen any reason why you shouldn’t eat guava. I fact it is very healthy for you. Food is not really the problem with kidney stones. The problem is most likely that you have not been getting enough water and have been dehydrated. When you get dehydrated your urine gets concentrated and can’t remove all the minerals from your kidneys. The minerals left bind together forming kidney stones.So, stop drinking anything with caffeine which dehydrates you, coffee, tea and soda. also reduce your salt intake, because salt will bind with the minerals and the stone will be like passing knives.Drink 8 glasses of water everyday to flush out the minerals that form kidney stones.I see no problem eating Guava for you. If you are worried you can look up list that give food they think cause kidney stones. But water is the most important thing you can do to help if you have kidney stones. Good Luck
What are the harmful effects of soft drinks?
Harmful Effects of Soft DrinksCoke and Pepsi have become two of the biggest brands in the world by selling extremely unhealthy products. Let us see why we should avoid soft drinks to maintain good health.A single can of soda contains large quantity of sugar. This amount of sugar, especially in liquid form, skyrockets the blood sugar and causes an insulin reaction in the body. Over time, this can lead to diabetes or insulin resistance.Soda contains phosphoric acid, which interferes with the body’s ability to absorb calcium and can lead to osteoporosis.In diet sodas, aspartame is used as a substitute for sugar, and can actually be more harmful. It has been linked to almost a hundred different health problems including seizures, multiple sclerosis, brain tumors, diabetes, and emotional disorders.Most sodas contain caffeine, which has been linked to certain cancers, breast lumps, irregular heartbeat, high blood pressure, and other problems.Soft drinks cause obesity.There is absolutely no nutritional value in soda. It is an unnatural substance that harms the body.Because of the high sugar, sodium and caffeine content in soda, it dehydrates the body and over a long period of time can cause chronic dehydration.Drinking soda regularly causes plaque to build up on the teeth and can lead to cavities.What should we do?Please do not be misled by Salman Khan, Hrithik Roshan and Kareena Kapoor when they promote soft drinks. They are promoting junk! Do not fall prey to the massive marketing and avoid soft drinks to maintain good health. Gopi Chand and Virat Kohli have refused to promote soft drinks. Soft drinks only do harm and no good. We should drink water whenever we feel thirsty. Water is the most important constituent of the body. Water is the best drink in the world!
Does the baking soda trick really work for cleaning meth out of your system?
My home girl passed every single piss test with the baking soda trick and did so by doing the technique that has the most up votes above. She never failed once and is successfully off probation, however it is crucial that you time it right or else it won't work. To find out the process the comment with the most up votes is spot on about this technique you just have to figure out by testing yourself how to go about it with the amount of baking soda and how many times you pee before going in for the test. The reason it works is because baking soda is more alkaline rather than acidic (like Meth is) and actually helps to mask the acidic levels of the Meth for the few hour time window you have til you do your test. The reason you have to pee 1 or 2 times before depending on the person is to get rid of the acidic urine that is present before the baking soda will kick in to make it alkaline. Meth is not alkaline it is acidic drinking acidic substances does help get rid of it out of your system, but it generally takes up to a day or two depending on the person. That's why people resort to baking soda so they can mask it just for long enough to do their piss test, but after so long it will be present in your urine again since its only being masked and not ridden out of your system. That is why the time window you have is very crucial and it's best to test it at home first to see if it works for you and how to go about the technique. You can even use up to 3 hours before starting your baking soda mask time window. Although, everyone is different and reacts differently to different things so test it first to make sure it works prior to the day you have to do your test. Oh and a fair warning I have tried this method and it did work for me the first time, but my issue was I couldn't handle the side affects that some people get because drinking baking soda does help as a bowel colon cleanse so beware you may be pissing out your other hole, but it's temporary and shouldn't affect your test unless it's really bad also you may feel nauseous if you put too many table spoons. Last thing I'm going to add is that it does not taste good and it is not recommended to mix with anything acidic because that counteracts the effects of it masking your pee so avoid acidic foods and drinks mainly drinks at all costs during your time window. Okay that's all.