교과서 질문
A 0.205 M NaOH solution is used to titrate 20.0 mL of a solution of H2SO4. If 45.6 mL of the NaOH solution is required to reach the endpoint, what is the molarity of the H2SO4 solution?
H2SO4(aq) + 2NaOH(aq) → 2H2O(l) + Na2SO4
1482
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Ch.10 Acids and Bases and Equilibrium
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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TOC.tableOfContents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353당신이 사용하는 게 아니라요?교과서 변경
10장, 문제 94a
Solution X has a pH of 9.0, and solution Y has a pH of 7.0.
a. Which solution is more acidic?
검증된 단계별 안내1
Understand the pH scale: The pH scale ranges from 0 to 14, where a pH less than 7 indicates an acidic solution, a pH of 7 is neutral, and a pH greater than 7 indicates a basic (alkaline) solution.
Compare the pH values of the two solutions: Solution X has a pH of 9.0, which is greater than 7, making it basic. Solution Y has a pH of 7.0, which is neutral.
Recall that acidity increases as the pH decreases. A lower pH corresponds to a higher concentration of hydrogen ions \( [H^+] \).
Since solution Y has a lower pH (7.0) compared to solution X (9.0), solution Y is closer to the acidic range of the pH scale.
Conclude that solution Y is more acidic than solution X because it has a lower pH value.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
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주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
pH Scale
The pH scale measures the acidity or alkalinity of a solution, ranging from 0 to 14. A pH of 7 is considered neutral, values below 7 indicate acidity, and values above 7 indicate alkalinity. Thus, the lower the pH value, the more acidic the solution.
추천 영상:
가이드 코스
02:33
The pH Scale
Acidic vs. Alkaline Solutions
Acidic solutions have a higher concentration of hydrogen ions (H+) compared to hydroxide ions (OH-), leading to a pH below 7. Conversely, alkaline solutions have more hydroxide ions, resulting in a pH above 7. Understanding this distinction is crucial for determining the relative acidity of solutions.
추천 영상:
가이드 코스
01:39Solutions
Comparative pH Analysis
To compare the acidity of two solutions, one can directly assess their pH values. In this case, solution X with a pH of 9.0 is alkaline, while solution Y with a pH of 7.0 is neutral. Therefore, solution Y is more acidic than solution X, as it is closer to the acidic end of the pH scale.
추천 영상:
가이드 코스
06:11Dimensional Analysis
관련 실천
교과서 질문
Solution A has a pH of 4.0, and solution B has a pH of 6.0.
a. Which solution is more acidic?
1221
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교과서 질문
Identify each of the following as an acid, base, or salt, and give its name:
a. H3PO4
831
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교과서 질문
Calculate the volume, in milliliters, of a 0.150 M NaOH solution that will completely neutralize each of the following:
a. 25.0 mL of a 0.288 M HCl solution
837
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교과서 질문
A buffer solution is made by dissolving H3PO4 and NaH2PO4 in water.
a. Write an equation that shows how this buffer neutralizes added acid.
989
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교과서 질문
Determine the pH for the following solutions:
c. [H3O+] = 0.0001 M
1004
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