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Why did It take one drop of HCI to decrease the pH of the buffered solution from 7 to 6?
First it's HCl (with a lowercase L) not HCI.
But as to the small amount of acid needed to provide the increase: HCl is a strong acid and so it completely dissociates to produce H+ ions, so the H+ concentration equals the HCl(aq) concentration.
A decrease in pH from 7 to 6 represents an increase in H+ ions from 10-7M to 10-6M. This would therefore only require the addition of about 3.65X10-5 grams of HCl for one liter of water, a very small quantity.
What else can I help you with?
Why take buffered aspirin?
Buffered aspirin is coated to help protect the stomach lining from irritation that can be caused by regular aspirin. This coating can help reduce the risk of stomach upset and potential damage to the stomach. Buffered aspirin may be recommended for individuals who are more sensitive to the stomach side effects of aspirin.
Why does the rate of evaporation of an aqueous solution decrease with the increase in humidity?
As the humidity increases, the partial pressure of water vapor in the atmosphere (above the solution being evaporated) also increases. This results in more energy being necessary for the liquid water to evaporate, thus the higher the humidity, the longer it will take for evaporation of an aqueous solution to take place. This is essentially based on Dalton's Law of Partial Pressures.
Describe how you would make 1.0L of a supersaturated solution of CdI2?
To make a supersaturated solution of CdI2, you would first dissolve an excess amount of CdI2 in hot water until no more can dissolve. Then, allow the solution to cool slowly without disturbing it to prevent crystallization. Once cooled, you will have a supersaturated solution of CdI2 ready for use.
How long will it take for the radiation level of strontium to drop to one-sixteenth of its original level?
The time it takes for the radiation level of strontium to drop to one-sixteenth of its original level can be determined using its half-life. For strontium-90, which has a half-life of about 29 years, it would take four half-lives for the radiation to decrease to one-sixteenth (since (1/2^4 = 1/16)). Therefore, it would take approximately 116 years for the radiation level of strontium-90 to drop to one-sixteenth of its original level.
Will the mass of melted ice decrease?
No, but it will take up slightly less space after melting.
How do you dilute and concentrate a solution?
To dilute a solution, add more solvent (such as water) to decrease the concentration of the solute. To concentrate a solution, remove some of the solvent (through evaporation or other methods) to increase the concentration of the solute.
What is the difference between phosphate buffer and phosphate buffered saline?
Phosphate buffer is a solution containing a mixture of dibasic and monobasic sodium phosphate used to maintain a stable pH. Phosphate buffered saline (PBS) is a buffer solution containing phosphate salts, sodium chloride, and sometimes potassium chloride used in biological and chemical research to provide a stable environment for cells. PBS is a specific type of phosphate buffer solution that is isotonic and mimics the pH and osmolarity of biological fluids.
Why take buffered aspirin?
Buffered aspirin is coated to help protect the stomach lining from irritation that can be caused by regular aspirin. This coating can help reduce the risk of stomach upset and potential damage to the stomach. Buffered aspirin may be recommended for individuals who are more sensitive to the stomach side effects of aspirin.
How neutral fecl3 solution prepare?
Take 1 ml FeCl3 solution. add ammonia solution drop wise till brown precipitate just form. Now again add FeCl3 solution till brown precipitate just dissolve. This is your Neutral FeCl3 solution.
How does share value decrease?
When there are lots of buyers, share prices go up, but when buyers sell their share, and there are no other buyers, share prices take a massive drop, i.e. this economic downfall
Why do bit rate decrease due to distance?
imagine that your connection in an tube of 10M with a 1degree angle You drop a glass of water in it. That take 10sec. imagine that your connection in an tube of 100M with 1degree angle, You drop a glass of water in it. How long the water take to reach the end ? The data is very comparable to water in drain.... Jean-François Cyr,
Why does the rate of evaporation of an aqueous solution decrease with the increase in humidity?
As the humidity increases, the partial pressure of water vapor in the atmosphere (above the solution being evaporated) also increases. This results in more energy being necessary for the liquid water to evaporate, thus the higher the humidity, the longer it will take for evaporation of an aqueous solution to take place. This is essentially based on Dalton's Law of Partial Pressures.
How do you decrease a number?
To decrease a number means to take away, or subtract, something from the number.
When blood glucose levels decrease what reserves are tapped?
When blood glucose levels drop, it is vital for the body to help stabilize them prevent fainting. The body will take fat reserves and convert them to glucose to do this.
How long does it typically take for nitrites to decrease in an aquarium?
Nitrites in an aquarium typically take about 2-6 weeks to decrease to safe levels.
Is buffered aspirin ok for dogs?
No, aspirin (even buffered aspirin) is very dangerous to dogs. Even a single pill can be enough to cause a fatal stomach ulcer.
Describe how you would make 1.0L of a supersaturated solution of CdI2?
To make a supersaturated solution of CdI2, you would first dissolve an excess amount of CdI2 in hot water until no more can dissolve. Then, allow the solution to cool slowly without disturbing it to prevent crystallization. Once cooled, you will have a supersaturated solution of CdI2 ready for use.
