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The most suitable one must be b!Because the stomach medicine mentioned here refers to ** excessive stomach acid. Whereas, the component of stomach acid is mainly hydrochloric acid.
All of these substances can consume hydrochloric acid. However, the copper ions produced by A are toxic, and C is prone to produce too much carbon dioxide, which is due to the increase in internal pressure, which can easily lead to gastric perforation of ulcers! d is inherently corrosive.
Therefore, the most suitable stomach medicine is aluminium hydroxide.
So in life, the general stomach acid (heartburn feeling), can be aluminum hydroxide or baking soda. However, if you have a stomach ulcer or a mild gastric perforation, you should not use baking soda!
Do you understand? Hope it helps!
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b. Aluminum hydroxide. Because aluminum hydroxide is amphoteric hydroxide, it can be used as a sentence reduction when there is too much stomach acid, that is, when there is too much hydrochloric acid, that is, aluminum hydroxide, when there is insufficient stomach acid, it can be used as aluminum acid to help digestion.
But he has a disadvantage, when the intake of aluminum is too much, it may cause Alzheimer's! There is a lot of aluminum hydroxide in fritters, so too much edible fritters can cause Alzheimer's!
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Aluminum hydroxide. Copper carbonate : Copper is a heavy metal that can be harmful to the human body if consumed in excess.
Soda : There are many kinds of stomach problems, if it is a stomach ulcer, you should not use baking soda because the CO2 produced will make the patient's stomach more painful.
Calcium hydroxide, I don't know about this.
However, I did a lot of questions related to stomach medicine, and many of them were aluminum hydroxide.
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Sodium bicarbonate. NaHCO3+HCl==NaCl+H2O+C02 (gas standard) Aluminum hydroxide will react with gastric acid to form aluminum ions, and heavy metal ions are harmful to the body.
Calcium hydroxide too.
And when swallowed in the throat.
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It must be aluminum hydroxide, the first few are going to kill people, adding baking soda produces a lot of carbon dioxide, and the stomach has to burst.
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Little Souda should be chosen here. The best is magnesium hydroxide.
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b Aluminum hydroxide, that's what is written in the textbook
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Baking soda can cure excess stomach acidity.
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Regardless of what the medicine is used for, please use it with caution and always follow the doctor's instructions.
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Yes, but use with caution if the stomach wall is thinner.
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Magnesium hydroxide is better, and this should also work.
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Yes, sodium bicarbonate is a weakly alkaline substance that can gently remove gastric acidPrinciple: ionic equation:
hco3-+h+
h20+co2
Chemical equation: NaHCO3+HCl=NaCl+H2O+CO2 had no change in sodium and chloride ions.
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OK. NaHCO3+HCl=NaCl+H2O+CO2 The acid in the stomach is hydrochloric acid.
It is not a base because its anion is HCO3 and not OH.
If you still don't understand, please hi me.
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OK.
nahco3+hcl=nacl+h2o+co2↑
Gastric acid, as long as it is hydrochloric acid, NaHCO3, commonly known as soda ash, but it is salt HCO3- is a weak alkali ion, hydrolyzed out of oh-, so it is alkaline, and it can be ** gastric acid.
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Generally speaking, yes, and sodium bicarbonate is not a base but a salt, but the sodium bicarbonate solution is alkaline, because sodium bicarbonate will ionize bicarbonate after dissolving in water, and bicarbonate will react with hydrogen ionized by water to form weak acid (carbonic acid), which will further aggravate the ionization of water, so there are more and more hydroxides in the solution, and the solution is alkaline. The reaction equation is as follows:
H2O==OH-+H+ (reversible).
nahco3==na++hco3-
HCO3-+H+==H2CO3 (reversible reaction) PS: sodium bicarbonate and gastric acid (main component HCl): NaHCO3+HCl==NaCl+H2CO3
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Yes, the equation is not stamped.
Sodium bicarbonate is alkaline in water and caused by hydrolysis, which you may not have learned, a sophomore in high school.
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Be sure to use sodium bicarbonate.
Because the Na2CO3 solution is too alkaline and harmful to the human body, while the sodium bicarbonate NaHCO3 solution is not strong alkaline and has no harm to the human body, sodium bicarbonate ** is used for excessive stomach acid.
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Baking soda belongs to alkaline substances, 2NaHCO3 + 2HCl Na2CO3 + H2O + CO2
The stomach contains a lot of stomach acid.
The main component of stomach acid is HCl, which is found in fairly low concentrations
So baking soda can lead to excessive stomach acidity.
However, recent studies have shown that aluminum can cause Alzheimer's .........
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Sodium bicarbonate hydrolysis is alkaline and can react with gastric acid. If junior high school children have difficulty understanding "hydrolysis", they can understand this reaction as a metathesis reaction of acid and bicarbonate. However, patients with gastric ulcers should not use antacids such as carbonates and bicarbonates, as CO2 gas can cause gastric perforation.
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Sodium carbonate must first be combined with stomach acid (i.e., hydrochloric acid).
The reaction produces sodium bicarbonate in order to produce dioxide.
Carbon, in addition, sodium carbonate in solution will be and dioxygen.
Sodium bicarbonate is formed by carbon reaction.
Na2CO3 CO2 H2O=2NaHCO3), so it is relatively simple and convenient to use sodium bicarbonate directly.
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There are two buffer solution systems in the human body, one is dihydrogen phosphate and the other is sodium bicarbonate. It is only for the university to recruit knowledge independently. If alkaline substances are used, the alkalinity is too strong and corrosive to mucous membranes and other tissues.
Sodium bicarbonate is weakly alkaline in aqueous solution, which involves the knowledge of salt hydrolysis in the book Principles of Chemical Reactions.
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Answer: **Sodium bicarbonate can be used for hyperacidity, although sodium bicarbonate is salt, its solution is weakly alkaline and can react with gastric acid (the main component of gastric acid is hydrochloric acid). The equation is: NaHCO3+HCl=NaCl+H2O+CO2 gas symbol.
Other methods include the use of aluminum hydroxide and other drugs, and the use of strong alkaline substances to neutralize the reaction with hydrochloric acid, the reaction is too violent, and the stomach can't stand it! )
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This alkalinity is relatively weak, or your stomach mucosa can't stand it.
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Sodium bicarbonate is fine, sodium carbonate is not.
Analysis: The main component of gastric acid is HCL, ** gastric acid, which is to use salt alkali to neutralize excessive acid in the stomach, sodium carbonate and sodium bicarbonate can react with HCl to produce harmless sodium chloride (the main component of table salt), water and carbon dioxide. However, due to the strong alkalinity of sodium carbonate, it reacts violently with HCl and generates a lot of carbon dioxide gas, which is easy to cause internal organs to swell, which may cause harm to the human body.
Therefore, sodium bicarbonate is generally used** excessive stomach acid.
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Patients with hyperacidity have a lower pH than normal due to the acidity of gastric juice that is stronger than normal; Taking drugs containing sodium bicarbonate, sodium bicarbonate can react with hydrochloric acid in gastric juice to produce chloride with sodium chloride, water and carbon dioxide, and the chemical formula is HCl + NaHCO3
nacl+h2
o+co2;As a result, the acidity will weaken and the pH will increase, and the reaction is an anti-orange reaction between acid and salt, not a neutralization reaction
So the answer is: low; become larger; hcl+nahco3
nacl+h2
o+co2;It's not
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Sodium bicarbonate is fine, sodium carbonate is not.
Analysis: The main component of gastric acid is HCL, ** gastric acid, which is to neutralize excessive acid in the stomach with salt and alkali, sodium carbonate and sodium bicarbonate can react with HCl to produce sodium chloride (the main component of table salt), water and carbon dioxide that are harmless to the human body. However, due to the strong alkalinity of sodium carbonate and the violent reaction with HCl, the carbon dioxide gas generated is more, which is easy to cause the internal organs to expand, and Lingqing Keshou Lu can cause harm to the human body.
Therefore, sodium bicarbonate is generally used** excessive stomach acid.
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Sodium bicarbonate is fine, sodium carbonate is not.
Analysis: The main component of gastric acid is HCL, ** gastric acid, which is to use salt alkali to neutralize excessive acid in the stomach, sodium carbonate and sodium bicarbonate can react with HCl to produce harmless sodium chloride (the main component of table salt), water and carbon dioxide. However, due to the strong alkalinity of sodium carbonate, it reacts violently with HCl and generates a lot of carbon dioxide gas, which is easy to cause internal organs to swell, which may cause harm to the human body.
Therefore, sodium bicarbonate is generally used** excessive stomach acid.
Known: ka1=, ka2=, sodium bicarbonate for carbonic acid.
pH = , RT, 25° then KW = 10 -14 then you can find KB1 = KW Ka2 , KB2 = KW KA1 According to the calculation of multiple weak bases, the sodium bicarbonate concentration of pH = is deduced from sodium bicarbonate PH=>PH= is relatively close, and it is calculated according to the substitution for comparison, KB2 * C is close to KB2 * 20 kW, so KB2 * C >> KB1 KB2 >100, and c kb1 is close, so c kb1 > 500 To sum up: kb2 * c >>20 kw, kb1 kb2>100, c kb1 > 500, meet the requirements of the simplified formula so, [oh-] 0 5 = kb1 * c seems to be wrong You take a look first The method is almost like this, first compare kb2 * c >>20 kw, kb1 kb2>100, c kb1 > 500 >>>More
Go to a certain sample.
After dissolving, excess hydrochloric acid is added to collect the gas produced to calculate the mol amount. >>>More
2.Preparation method:
1) Laboratory method: >>>More
Of course, the following methods are to measure the original mass in the sample, and then fully heat it to see how much the mass is reduced, and what is reduced is the H2O and CO2 released in 2NaHCO3=Na2CO3+H2O+CO2, so that the mass of NaHCO3 in it is known, and finally of course it must be converted into the original sample mass.
Because a large amount of hydroxide will be produced during hydrolysis, sodium bicarbonate will also be ionized to produce hydrogen ions, and hydrogen ions and hydroxide will be neutralized together, so the alkalinity is weak, and the pH value will become low. >>>More