The volume of 6.00M HCl needed to make 319 ml of 6.80M HCl
Answers
Answer : The volume of 6.00 M HCl needed are, 361.5 ml
Solution :
According to the neutralization law,
where,
= molarity of HCl solution = 6.00 M
= volume of HCl solution = ?
= molarity of another HCl solution = 6.80 M
= volume of another HCl solution = 319 ml
Now put all the given values in the above law, we get the volume of HCl solution.
Therefore, the volume of 6.00 M HCl needed are, 361.5 ml
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Answers
The pH of a 0.020 M aqueous solution of propionic acid is 1.70.
What is aqueous solution?
Aqueous solution is defined as a chemical mixture in which water serves as the solvent. Aqueous solutions are made up of water and one or more dissolved materials. Solids, gases, or other liquids can all dissolve in an aqueous solution. A mixture needs to be stable in order to be considered a true solution.
pH is defined as a scale that is used to describe an aqueous solution's acidity or basicity. A high pH in the body can happen for a number of reasons, such as faulty kidney/liver function, digestive issues, drug side effects, and lung issues. When the body's levels of carbon dioxide, an acid, are too low, respiratory alkalosis occurs.
pH = -log[H+]
pH = -log [ aqueous solution ]
pH = - log [ 0.020 ]
pH = 1.70
Thus, the pH of a 0.020 M aqueous solution of propionic acid is 1.70.
To learn more about aqueous solution, refer to the link below:
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Answers
The product of an alphadecay of 222/86 Rn is 218/84 Po (option B).
What is an alpha decay?
Alphadecay is a type of radioactive disintegration in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
An alphaparticle is a positively charged nucleus of a helium-4 atom emitted as a result of radioactivity. It has a formula of 4/2 He.
This suggests that when a 222/86 Rn undergoes alphadecay, the product will have mass and atomic number as follows:
- Mass no.: 222 - 4 = 218
- Atomic no.: 86 - 2 = 84
The element with atomic number 84 is Polonium (Po).
Therefore, option B is correct.
Learn more about alpha decay: brainly.com/question/35140893
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Answers
When looking up at the clouds, you can usually make out different shapes and figures with cumulus clouds.
Cumulus low-level clouds. They are the puffy, white, cotton-top clouds that look so soft.
Answers
True
False
Answers
Just in case you do get it, a ligament will attach a bone to a bone, just as a fun fact
Answer:
This is true.
Explanation:
A person’s background and interests can give him a unique perspective in his research.
If a person has an outside influence on his work, it is more credible to the general public.
A person’s involvement in arts and literature will help them notice more details in their research.
Answers
Answer:
Option B
Explanation:
A person’s background and interests can give him a unique perspective in his research is the correct answer, I got it right on the test.