@TheBestGuitarSoloEVR Oh, I'm sorry. I didn't realize you were unoriginal and borderline retarded. I wouldn't have even bothered with the carpal tunnel.
Actually, one thing that always got to me when I studied chemistry, was when studying the effect of temperature on the rate of reaction. What I didn't understand was the way the graph used to be plotted, with (1/time) agst Temp. It said (1/time) was equal to the rate. (1/time) is NOT the definition of the rate of reaction? It could mean anything.
Interesting. I think what they were getting at was the higher the temperature the less time it takes for the reaction to occur. When there is an inverse relationship between two number (one up one down) then they usually say X=(1/Y) This is the same as saying XY=Constant. That is my best guess why they would choose to use that relationship.
Another reaction I came across recently was: 2KI + CI2 => 2KCI + I2. In this reaction though, only the (I-) part of the 2KI was considered to be the reducing agent.
Hi again, one thing I didn't get with regard to redox reactions was whether or not the actual compound is cosidered to be the reducing/oxidising agent, OR whether it's a element in the compound? Hydrogen peroxide is considered to be an oxidising agent as a whole, but as far as I know it's only the O2 in it gets reduced, so therefore only O2 part of it can be considered to be oxidising agent?
I came across a puzzling contradiction once. If ammonium iron(II) sulfate is a primary standard then how come once when I was reading about how dilute sulfuric acid is added to it in redox titratons; it said "the sulfuric acid helps helps to prevent the Fe2+ ions from being oxidised to Fe3+ ions by O2 in air or dissolved in water". If it's a primary standard then it shouldn't be affected by the air?
How come there's a high concentration of negative charge around a C=C bond in a molecule of ethene? How come it's enough to polarise Br-Br, when bromine is less electronegative than carbon?
Unlike other ferrous sulfate salts, this one is much less prone to oxidation by O2 due to the presence of the ammonium ions and the highly pH-dependent nature of the redox reaction between the salt and O2. While it does have some reactivity with air, it's much lower than that of other ferrous sulfate salts, making it a superior titrant. With the addition of the sulfuric acid, the reactivity with O2 becomes negligible.
Alka-Seltzer is better because most of the gas escapes before you swallow it, so it won't make you feel as bloated as just swallowing a tums style tab of it. It still isn't the best for someone with high blood pressure. Most people wouldn't notice a difference thanks to the high sodium american diet.
Typically, Ammonia is a base. It works by removing hydrogen from water, therein creating hydroxide ions. If put into a strong base, it may begin to display acidic properties, but not nearly as profound as a more neutral or acidic substance.
Yes aqueous is put next to the substances that are disolved in water. They are dissociated and the Anions and Cations are seperated in the solution. The CO2 does not come out of the lungs, it goes up to the ceiling of the stomach because it is less dense than the digestive fluids. Once the diaphragm squeezes against the increasing pressure of the stomach, the gas is expelled right out of the esophagus, as a belch. Or, it gets dissolved in feces and goes thru the intestines and passes as a fart.
I think they should leave out the AlOH stuff incase some of it didn't react and then it would be pure aluminium, which could cause alzheimer's!!!!!!!!!
Aluminum metal and Aluminum ions may not display the same properties. Unless exposed to an electron donating energy source, the aluminum would remain a soluble ion and not become solid metal inside of the body.
You just said any substance that increases the hydroxide ion concentration is a base according to the Bronstead-Lowry theory. This is only true to the Arrhenius definitions. Let me show you: consider the reaction HCl + H2O > (H30+) + Cl-
In this rxn, water acts as the base, and it is clearly obvious that there is no increase in hydroxide ions in the above rxn.
No hydroxide ions were created because there was an acid already present in the solution. Water, umless it is deionized does create hydroxide ions. But, concurrently creates hydrogen ions in an equal proportion. Water can have both acid and base properties. I restate what I said before, it is relative to the reaction. The water occcaisionally dissociates into H+ and OH-. The presence of an acid will turn the OH- back into H2O and simultaneously put H+ into the non-ionized water.
So, would I be right in saying that a base only gives off OH- ions in water. If true, then you could always just say what you said for any other situation; "No hydroxide ions were created because there was an acid already present in the solution."
The fact is, you were defining the Arrhenius definition of an acid, when you were talking in terms of the Bronstead-Lowry one.
Yeah I may have the names mixed up. In the mx of learning all of these chemistry terms I tend to remember the main points and not worry about who discovered them. I may be talking Arrhenius. Either way, I can recite what makes an acid or a base. Proton donor or proton accepter are the best comparisons to use to figure out which is the acid and which is the base without worrying about them being dissolved in solution.
Arrhenius's definition of an acid is actually more correct, I think, because nobody regards water as an acid, & water can be regarded as an acid according to some reactions by the Bronstead-Lowry theory. And its clearly ridiculous for water to be considered an acid.
I take it no ampiprotic substances exist according to the Arrhenius definitions???
What purpose did mentioning that serve? Whether a substance is an acid or a base is relative to it's reaction, not to it's pH. This is where the Bronsted Lowry definition comes into play. Any substance that gives of a proton (H+ ion) is called an acid. Any substance that increases hyroxide ion concentration is a base. Whether created from dissociation of a compound or from ionization of the surrounding solvent (typically water). Water can be an acid if it gives a proton to neutralize a OH- ion.
I think it served alot of purpose. Come on now, I think if someone said water is an acid, they'd be told jump in the lake. Acids are considered to be dangerous sustances.
All in all, substances that are not amphiprotic can only be considered as actual acids. Otherwise, you can't say an acid is an acid just like you can say a tree is a tree.
Acids are not all caustic substances, a person who says that must not know their chemistry. Our skin is slightly acidic thanks to an evolutionary response to acid rain. Our blood is slightly basic. Soda is an acid, but you drink it without dyng. As far as pH can go is to tell what the Hydrogen ion concentration in a solution is, this measures acidity and alkalinity according to the negative log of Hydrogen ion concentration. But in a chemical reaction, an acidic substance isn't always THE acid.
@TheBestGuitarSoloEVR just because you dont understand him doesnt make him gay. it just makes you semi-retarded.
bringbackalfnow 1 year ago
@bringbackalfnow faggot!
TheBestGuitarSoloEVR 1 year ago
@TheBestGuitarSoloEVR Oh, I'm sorry. I didn't realize you were unoriginal and borderline retarded. I wouldn't have even bothered with the carpal tunnel.
bringbackalfnow 1 year ago
This has been flagged as spam show
How does the fact that the relatively large size of the bromine atom allow the formation of a 3 membered ring structure in the carbonion ion?
1091Floyd21 1 year ago
BTW, thanks for the info.
1091Floyd21 2 years ago
No problem bud
bodinian 2 years ago
Actually, one thing that always got to me when I studied chemistry, was when studying the effect of temperature on the rate of reaction. What I didn't understand was the way the graph used to be plotted, with (1/time) agst Temp. It said (1/time) was equal to the rate. (1/time) is NOT the definition of the rate of reaction? It could mean anything.
1091Floyd21 2 years ago
Interesting. I think what they were getting at was the higher the temperature the less time it takes for the reaction to occur. When there is an inverse relationship between two number (one up one down) then they usually say X=(1/Y) This is the same as saying XY=Constant. That is my best guess why they would choose to use that relationship.
bodinian 2 years ago
Another reaction I came across recently was: 2KI + CI2 => 2KCI + I2. In this reaction though, only the (I-) part of the 2KI was considered to be the reducing agent.
1091Floyd21 2 years ago
Hi again, one thing I didn't get with regard to redox reactions was whether or not the actual compound is cosidered to be the reducing/oxidising agent, OR whether it's a element in the compound? Hydrogen peroxide is considered to be an oxidising agent as a whole, but as far as I know it's only the O2 in it gets reduced, so therefore only O2 part of it can be considered to be oxidising agent?
1091Floyd21 2 years ago
The whole agent is the reducing part, not just one part of it.
bodinian 2 years ago
I came across a puzzling contradiction once. If ammonium iron(II) sulfate is a primary standard then how come once when I was reading about how dilute sulfuric acid is added to it in redox titratons; it said "the sulfuric acid helps helps to prevent the Fe2+ ions from being oxidised to Fe3+ ions by O2 in air or dissolved in water". If it's a primary standard then it shouldn't be affected by the air?
1091Floyd21 2 years ago
No, it shouldnt be affected by the air.
bodinian 2 years ago
How come there's a high concentration of negative charge around a C=C bond in a molecule of ethene? How come it's enough to polarise Br-Br, when bromine is less electronegative than carbon?
1091Floyd21 1 year ago
@1091Floyd21
Unlike other ferrous sulfate salts, this one is much less prone to oxidation by O2 due to the presence of the ammonium ions and the highly pH-dependent nature of the redox reaction between the salt and O2. While it does have some reactivity with air, it's much lower than that of other ferrous sulfate salts, making it a superior titrant. With the addition of the sulfuric acid, the reactivity with O2 becomes negligible.
Hope I helped :)
SSJkiller 10 months ago
@SSJkiller Thank you for helping out the viewers!
bodinian 4 weeks ago
Yep, I wikid Alka-Seltzer. It contains Sodium bicarbonate.
1091Floyd21 2 years ago
Alka-Seltzer is better because most of the gas escapes before you swallow it, so it won't make you feel as bloated as just swallowing a tums style tab of it. It still isn't the best for someone with high blood pressure. Most people wouldn't notice a difference thanks to the high sodium american diet.
bodinian 2 years ago
Is NH3 considered a base all the time, or can it be both??????????
1091Floyd21 2 years ago
Typically, Ammonia is a base. It works by removing hydrogen from water, therein creating hydroxide ions. If put into a strong base, it may begin to display acidic properties, but not nearly as profound as a more neutral or acidic substance.
bodinian 2 years ago
Are you sure, I'm sure I read somewhere, that bisodol contains NaHCO3???
1091Floyd21 2 years ago
It could, but it definitely isn't the best choice of active ingredients. It is also likely to make someone have gas because of the reaction
NaHCO3(s)+HCL(aq)--> NaCl(Aq)+
H2O(l)+CO2(g)
bodinian 2 years ago
Did you put (aq) beside the ones that dissolve in water only.
The gase CO2. Would this be released from the lungs I take it.
1091Floyd21 2 years ago
Yes aqueous is put next to the substances that are disolved in water. They are dissociated and the Anions and Cations are seperated in the solution. The CO2 does not come out of the lungs, it goes up to the ceiling of the stomach because it is less dense than the digestive fluids. Once the diaphragm squeezes against the increasing pressure of the stomach, the gas is expelled right out of the esophagus, as a belch. Or, it gets dissolved in feces and goes thru the intestines and passes as a fart.
bodinian 2 years ago
Doesn't alluminium cause alzheimers? Whoaa!
I think they should leave out the AlOH stuff incase some of it didn't react and then it would be pure aluminium, which could cause alzheimer's!!!!!!!!!
1091Floyd21 2 years ago
Aluminum metal and Aluminum ions may not display the same properties. Unless exposed to an electron donating energy source, the aluminum would remain a soluble ion and not become solid metal inside of the body.
bodinian 2 years ago
You just said any substance that increases the hydroxide ion concentration is a base according to the Bronstead-Lowry theory. This is only true to the Arrhenius definitions. Let me show you: consider the reaction HCl + H2O > (H30+) + Cl-
In this rxn, water acts as the base, and it is clearly obvious that there is no increase in hydroxide ions in the above rxn.
1091Floyd21 2 years ago
No hydroxide ions were created because there was an acid already present in the solution. Water, umless it is deionized does create hydroxide ions. But, concurrently creates hydrogen ions in an equal proportion. Water can have both acid and base properties. I restate what I said before, it is relative to the reaction. The water occcaisionally dissociates into H+ and OH-. The presence of an acid will turn the OH- back into H2O and simultaneously put H+ into the non-ionized water.
bodinian 2 years ago
So, would I be right in saying that a base only gives off OH- ions in water. If true, then you could always just say what you said for any other situation; "No hydroxide ions were created because there was an acid already present in the solution."
The fact is, you were defining the Arrhenius definition of an acid, when you were talking in terms of the Bronstead-Lowry one.
1091Floyd21 2 years ago
Yeah I may have the names mixed up. In the mx of learning all of these chemistry terms I tend to remember the main points and not worry about who discovered them. I may be talking Arrhenius. Either way, I can recite what makes an acid or a base. Proton donor or proton accepter are the best comparisons to use to figure out which is the acid and which is the base without worrying about them being dissolved in solution.
bodinian 2 years ago
Read the below reply first...... As this demonstrates, water acts as a base, while the OH- Concentration does not change.
bodinian 2 years ago
Comment removed
BociPuki 3 years ago
Arrhenius's definition of an acid is actually more correct, I think, because nobody regards water as an acid, & water can be regarded as an acid according to some reactions by the Bronstead-Lowry theory. And its clearly ridiculous for water to be considered an acid.
I take it no ampiprotic substances exist according to the Arrhenius definitions???
1091Floyd21 2 years ago
What purpose did mentioning that serve? Whether a substance is an acid or a base is relative to it's reaction, not to it's pH. This is where the Bronsted Lowry definition comes into play. Any substance that gives of a proton (H+ ion) is called an acid. Any substance that increases hyroxide ion concentration is a base. Whether created from dissociation of a compound or from ionization of the surrounding solvent (typically water). Water can be an acid if it gives a proton to neutralize a OH- ion.
bodinian 2 years ago
I think it served alot of purpose. Come on now, I think if someone said water is an acid, they'd be told jump in the lake. Acids are considered to be dangerous sustances.
All in all, substances that are not amphiprotic can only be considered as actual acids. Otherwise, you can't say an acid is an acid just like you can say a tree is a tree.
1091Floyd21 2 years ago
Acids are not all caustic substances, a person who says that must not know their chemistry. Our skin is slightly acidic thanks to an evolutionary response to acid rain. Our blood is slightly basic. Soda is an acid, but you drink it without dyng. As far as pH can go is to tell what the Hydrogen ion concentration in a solution is, this measures acidity and alkalinity according to the negative log of Hydrogen ion concentration. But in a chemical reaction, an acidic substance isn't always THE acid.
bodinian 2 years ago