The pH is a solution remains constant in the presence of a buffer if acid or base is added beyond the buffer capacity. True or false.
Answers
The strong acid and strong base has high rate constant of dissociation. Weak acid and base are the one whose rate constant for the dissociation is low, they do not dissociate readily in water. Therefore, the given statement is false.
What are acid and base?
Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base are the solution which releases hydroxide ion OH⁻ ion when dissolved in water. pH is measurement of hydronium ion.
A buffer is a solution containing either a weak acid and its salt or a weak base and its salt, which is resistant to changes in pH. The statement is false. When you add an acid or base in amounts greater than the buffer capacity you no longer have the buffer to influence solution pH.
Therefore, the given statement is false.
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Related Questions
Watch the animation and observe the titration process of a standard 0.100 M sodium hydroxide solution with 50.0 mL of a 0.100 M hydrochloric acid solution. Identify which of the following statements regarding acid-base titration are correct. A. The pH of the solution at the equivalence point is 7. B. At the end point, the pH of the solution is 10 and the color of the solution is pink. C. Before any base is added to the solution, the pH of the solution is 10. D. The pH of the solution changes very slowly at the equivalence point. E. At the beginning of the titration process, the pH of the solution increases rapidly. F. The chemical reaction involved in an acid-base titration is a neutralization reaction.
6. Explain why the boiling point of water is a characteristic physical property, but the temperature and volume of a glass of water are not.
State one conclusion from Rutherford experiment that contradicted one conclusion made by Thompson
What term describes an atom's tendency to hold on on to electrons?
Answers
Answer:
proton and neutron
Explanation:
proton is positive while neutron is neutral so they can live togher
Answers
Final answer:
The color of light affects plants' growth and leaf production due to the role of different light colors in photosynthesis and the phytochrome system in plants. Chlorophyll mainly absorbs red and blue light from the light spectrum for photosynthesis, and far-red light can slow plant growth. Therefore, exposure to different light colors could result in different numbers of leaves.
Explanation:
The subject of the question is how the color of light affects the growth of plants, specifically the number of leaves plants produce. This experiment is primarily about the effect of light on plant's photosynthesis, a process that uses light to convert carbon dioxide and water into glucose. The glucose is utilized to fulfill various energy requirements of the plant's growth, including the growth of leaves.
Light has diverse wavelengths, with each color representing a different wavelength. While white light contains all the possible color wavelengths, the red light specifically contains a higher wavelength region. According to Sir Isaac Newton's experiment, sunlight, which looks white to us, contains all the colors of the spectrum.
In this context, the phytochrome system in plants plays a crucial role. Chlorophyll, the green pigment in leaves, absorbs mainly red and blue light from the light spectrum and uses that energy for photosynthesis. However, far-red light, which is one element of white light, is not absorbed. If a plant is exposed more to far-red light, it could slow its growth.
Consequently, the difference in the number of leaves that Mr.Smith observed in the plants under white light and those under red light might be due to the role of light color in photosynthesis and the phytochrome system in plants.
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Answers
Answer:
use the rule of speed
Explanation:
speed =distance over time
B. How can the forces on a space probe be controlled so it will land
on Mars?
O C. What type of substances make up the soil on Mars?
O D. Should the government spend taxpayers' money to send space
probes to Mars?
Answers
Answer:A
Explanation: Were there any living organisms is the answer because physics is the study of matter,its motion and behaviour of space and time and some other topics like energy and force.
Answer:
B
Explanation:
Forces and vectors on a probe are a physics thing
0 atoms of carbon.
c.
6 atoms of carbon.
b.
1 atom of carbon.
d.
12 atoms of carbon.
Answers
Answer : The correct option is, (d) 12 atoms of carbon.
Explanation:
The formula of given molecule of table sugar is,
The given molecule is made up of three elements which are, carbon, hydrogen and oxygen.
In the given molecule of table sugar , there are 12 number of carbon atoms, 22 number of hydrogen atoms and 11 number of oxygen atoms.
From the given options we conclude that, the option (d) is the correct option. While the other options are incorrect.
Hence, the correct option is, (d) 12 atoms of carbon.
Answers
Answer:
1 gram molecular mass of this compound = 20
Explanation:
Gram Molecular Mass is the mass of a chemical that is obtained by the number of grams in the chemical determined by the masses obtained from the periodic table and the number of mols determined from the Chemical formula.
That's quite a mouthful. Here's what it means in plain language.
Find the Gram molecular mass of C2H6
The periodic table tells us that 1 mol of C2H6 has
2 mols of Carbon which is 2*C or 2 * 12 = 24 and
6 mols of Hydrogen which is 6*H or 6*1 = 6
The gram molecular mass is 6 + 24 = 30
Your question doesn't require all that background.
5 gram molecular masses = 100 grams Given
1 gram molecular mass = x
5/1 = 100/x Cross multiply
5x = 100 Divide by 5
x = 100 / 5
x = 20
The gram molecular mass of a compound whose 5 moles has a mass of 100 grams would be 20 grams per mole.
The gram molecular mass of a substance is simply the mass (in gram) of 1 mole of the same substance. In other words, the gram molecular mass of a substance is also the same as the molar mass of the substance.
In this case, 5 moles of the substance weigh 100 grams
Therefore, 1 mole of the same substance would weigh:
1 x 100/5 = 20 grams
More on the gram molecular mass can be found here: brainly.com/question/11865839