2. This is because a conjugate acid is formed when a base gains a proton (H+). So, the conjugate acid of H2PO4- is H3PO4. The base, B, is a proton acceptor which can become its conjugate acid, HB +. 1 Find step-by-step Chemistry solutions and the answer to the textbook question Which of the following is the conjugate acid of H2PO4^-?a. Acid strength is inversely related to the stability of the conjugate base formed after the proton is lost. When aqueous solutions of sodium bicarbonate and sodium dihydrogen phosphate are mixed in the proper mole ratios of solutes, a reaction occurs by the following net ionic equation. The conjugate acid of H 2P O− 4 is H 3P O4 which have one proton more than the base. Identify the formula for the conjugate acid of H2O. This transformation illustrates the concept of a base becoming a conjugate acid upon gaining a proton. [8] To solve this, you need to examine each species provided and determine which one can act as an acid by losing a proton. The formula for the conjugate acid of HCO3 is 1. The strength of an inorganic acid is dependent on the oxidation state for the atom to which the proton may be attached. This is because a conjugate base is formed when an acid donates a proton (H+). Oct 13, 2020 · An example of a conjugate acid-base pair is the relationship between H 2S O4 (sulfuric acid) and H S O4− (the hydrogen sulfate ion, a conjugate base), where H 2S O4 donates a proton to form its conjugate base. a) HO2- b) CO32- c) NH2- d) H2PO4- e) SO42- f) C2H3O2- g) NH3 h) HPO42- 3. A conjugate base is the species that results when an acid donates a proton (H+). Here is the reaction: H2PO4- + H+ -> H3PO4 This can be represented in a table as follows: Remember, the conjugate acid-base pair differs by one proton. The conjugate acid-base pair consists of two species that differ by the presence or absence of a proton. According to the Bronsted-Lowry theory, an acid is defined as a substance that donates protons (H+ ions), while a base is a substance that accepts protons. We would like to show you a description here but the site won’t allow us. All Brønsted-Lowry acid-base reactions involve 2 conjugate acid-base conjugate pairs. Let me explain you the question. What is the conjugate base of dihydrogen phosphate (H2PO4)? phosphoric acid (H3PO4) hydrogen phosphate (HPO42) phosphate (PO4³) dihydrogen phosphate has no conjugate base BUY Chemistry 10th Edition Nov 10, 2004 · The conjugate acid of H2PO4 is H3PO4, which forms when a base gains a hydrogen ion. Identify and label the Brønsted-Lowry acid, its conjugate base, the Brønsted-Lowry base, and its conjugate acid in each of the following equations:H2PO4− + H We would like to show you a description here but the site won’t allow us. Identify the base (H 2 P O 4) and determine what the conjugate acid will be by adding a hydrogen ion (H +) to it. conjugate（共轭）这个词在各种数学表达中为什么意思？ 最好有物理的来源。 例如conjugate function，~ prior，~ complex numbers. asked • 10/26/20 Identify the conjugate acid of H2PO4 and then the conjugate base of H2PO4+ Follow • 2 Add comment Report A conjugate acid is formed when a base gains a proton (H+), and a conjugate base is formed when an acid loses a proton. H2PO4- → HPO 42- + H + Is this answer helpful? The conjugate acid of H2PO4- is H3PO4, which gains a proton in the process. This process is a fundamental concept in acid-base chemistry, illustrating how acids and bases interact. The H2PO4- ion is the predominant conjugate base species of phosphoric acid (H3PO4) at pH values between 2 and 7. It is a monovalent inorganic anion and a phosphate ion. Find step-by-step Chemistry solutions and the answer to the textbook question Which of the following is the conjugate acid of H2PO4^-?a. This results in the formation of the conjugate base (HPO4^2-). This produces the conjugate base of H2PO4–, HPO42–, and the conjugate acid of water, H3O+. We will analyze each species in List-I and find its corresponding conjugate pair in List-II. Jun 6, 2022 · Identify and label the Brønsted-Lowry acid, its conjugate base, the Brønsted-Lowry base, and its conjugate acid in each of the following equations:H2PO4− + O The conjugate base of H2PO4- is hydrogen phosphate, HPO42-. Let us consider a general acid-base reaction as follows: Acid + Base ⇌ Conjugate base + Conjugate Acid Oct 12, 2024 · Discover the conjugate acid of HPO4, exploring phosphate buffer solutions, acid-base chemistry, and hydrogen phosphate ions in a detailed explanation of HPO4 conjugate acid formation and its significance. 92K subscribers Subscribed Sep 27, 2025 · To determine the conjugate base, we need to understand the concept of conjugate acid- base pairs. The stronger an acid, the weaker its conjugate base, and, conversely, the stronger a base, the weaker its conjugate acid. In every conjugate acid-base pair, the acid has one more proton than its conjugate base. The strength of a weak organic acid may depend on substituent effects. (The conjugate acid always carries one unit of positive charge more than the base, but the absolute charges of the species are immaterial to the Sep 8, 2024 · 厄米算符的例子 位置算符 位置算符 \hat x 在位置表象中表示为： \hat x\psi (x)=x\psi (x)\\ 其厄米共轭为： (\hat x^ {\dagger}\psi) (x)=x\psi (x)\\ 显然， \hat {x}^\dagger = \hat {x}，所以 \hat x 是厄米算符。 动量算符 动量算符 \hat p 在位置表象中表示为： \hat p\psi (x)=-8\hbar\frac {\psi (x)} {dx}\\ 其厄米共轭为： (\hat p Oct 15, 2020 · 什么是complex conjugate？ 函数和复数的complex conjugate有什么关系？ 复数的complex conjugate很好理解，虚部取负号就好了，但是函数的complex conjugate是什么？ 是不是相应的原函数运算结果取c… 显示全部 关注者 2 被浏览. Since H2PO4- was the stronger acid, you know water will act as the base in this reaction and accept the proton from the stronger acid. Note: HF is a weak acid so it will not undergoes dissociation (c) Net ionic equation: When we removed the spectator ion namely K + from both sides of the ionic equation, then we will get the net ionic equation which will be: Oct 26, 2020 · Chemistry Itzel R. Jan 3, 2024 · The conjugate acid of H2PO4− is H3PO4 because it is formed by the addition of a proton to the base. 2- A cation can be a conjugate acid, and an anion can be a conjugate base, depending on which substance is involved and which acid–base theory is used. A conjugate acid’s conjugate base is formed when a proton (H+1) is removed from it. 8H2O C Na2CO3. . This HPO4 2- is the conjugate base of the H2PO4- acid. 4. Dihydrogen means two hydrogens. It is a conjugate base of a phosphoric acid. This is demonstrated in an ionization process where a proton is added to H2PO4- to result in H3PO4. If you look at the entire phosphoric acid series here, you can say that H2PO4- is the conjugate base of H3PO4, or you can say that H3PO4 is the conjugate acid of H2PO4- You can say that (HPO4)2- is the conjugate base of H2PO4-, or you can say that H2PO4- is the conjugate acid of (HPO4)-. It is a conjugate acid of a hydrogenphosphate. It is formed when H2PO4- donates a proton. The conjugate acid of HPO42- is H2PO4-. H4PO4. The formula for the conjugate base of H,C6H606 is 2. 10H2O D Na3CO3. The use of conjugate acid-base pairs allows us to make a very simple statement about relative strengths of acids and bases. The conjugate acid of a base is formed when the base accepts a proton (H+). H_4PO_4^+ b. H2O (water) - Water is a neutral molecule and does not donate a proton to become a conjugate base. Mar 25, 2025 · Conjugate acid of HPO4, phosphoric acid's ionized form, plays a crucial role in acid-base chemistry, buffering solutions, and biochemical reactions, involving phosphate groups and hydrogen ions. When an acid donates a proton, its conjugate base is formed while adding a proton to a base will yield its conjugate acid. Is hco3 an acid or a base, one might wonder. The conjugate acid should have one extra proton than its corresponding base. The Bronsted-Lowry acid-base theory identifies an acid as a proton donor and a base as a proton acceptor. Jan 1, 2026 · Answer to What is the conjugate acid of HPO42- (aq)? H2PO4 (aq) Study with Quizlet and memorize flashcards containing terms like taste sour, dissolve metals, turn blue litmus paper red, neutralize bases, hydrochloric, sulfuric, nitric, and carboxylic acid, taste bitter, feel slippery, turn red litmus paper blue, neutralize acids and more. Define pH. Buffers are crucial in various biological and chemical processes where pH stability is essential. They typically consist of a weak acid and its conjugate base or a weak base and its We would like to show you a description here but the site won’t allow us. The simplest anion which can be a conjugate base is the free electron in a solution whose conjugate acid is the atomic hydrogen. HPO42- can also act as both an acid and a base, though it is a weaker acid than H2PO4-. So you get H3O+. If it is conjugate base, remove a proton then add a negative charge. 020 MHZ, has a pH of 4. Conjugate form of a substance is that species after accepting a proton or donating a proton. There are missing charges. com member to unlock this answer! Create your account View this answer To determine the conjugate acid of H2PO4-, we need to understand the concept of conjugate acids and bases in chemistry. The formula for the conjugate acid of NH3 is please help Show transcribed image text The conjugate base of an acid is formed when the acid donates a proton (H+). The formula for the conjugate acid of I is 2. H3PO4 (Phosphoric acid) is the conjugate acid of H2PO4⁻ because it is formed when H2PO4⁻ accepts a proton. It is the conjugate base of the hydrogen phosphate ion [HPO4]2−, which in turn is the conjugate base of the dihydrogen phosphate ion [H2PO4]−, which in turn is the conjugate base of orthophosphoric acid, H3PO4. VIDEO ANSWER: Hello, hi students. Explanation: A conjugate acid is formed when a base accepts a proton (H⁺). Concept: Bronsted Lowry theory of acids and bases: According to this theory, A base is a substance that is capable of accepting a proton What is the conjugate acid of H2PO4-? Not Your Chem Tutor 1. What is the conjugate base of h2po4 in this regard? Answer and Explanation: H2 PO4’s conjugate base is HPO4 -2. The hydronium ion (H3O = water conjugate acid) and the dihydrogen phosphate ion (H2PO4=conjugate base of H3PO4) are created as a result of this. Here we have to write the formula for the conjugate acid, conjugate acid of dihydrogen phosphate. Feb 7, 2025 · The conjugate acid of is a. Conjugated acid of (H2PO4)-: Conjugate base-acid is the major point of Bronstead-Lowry acid-base theorem. Define Conjugate Acid and Conjugate base with one Example. So, in the reaction you wrote is not quite complete. Nov 10, 2004 · The conjugate acid of H2PO4 is H3PO4, which forms when a base gains a hydrogen ion. In a pair of species called conjugate acid and base, you can tell the acid as it has one extra H in the formula and the charge is +1 more than the base. Conjugate Base of H2PO4- The conjugate Jan 22, 2025 · To determine the conjugate acid of H 2P O4−, let's follow these steps: Understanding Conjugate Acids: A conjugate acid is formed when a base gains a proton (H +). asked • 10/26/20 Identify the conjugate acid of H2PO4 and then the conjugate base of H2PO4+ Follow • 2 Add comment Report Jan 3, 2024 · The conjugate acid of H2PO4− is H3PO4 because it is formed by the addition of a proton to the base. Or, you can identify the base, which will have one less H and one more -1 charge than the conjugate acid. In the given options, let's analyze each one: a. Acid-base equilibria Dihydrogen phosphate can be both a hydrogen donor and acceptor. The conjugate acid of H2PO4- is H3PO4. A conjugate acid is formed when a base gains a proton (H+), while a conjugate base is formed when an acid loses a proton. 6H2O 2- H2PO 42- H2PO4 H3PO4 1 A PO4 B C D f Question no 2. HA ⇌ H+ + A− Acetic acid (CH3COOH) is an example of a weak acid. Question: (a) What is the conjugate acid of H2PO4-? enter formula: (b) What is the conjugate base of HSO4-? enter formula: (c) Identify the acid, base, conjugate acid, and conjugate base in the following reaction: Step-by-step explanation The conjugate acid is produced by the addition of a proton to a specific base. Question: Which of the following is a conjugate acid-base pair? o H3O+ and OH H2PO4 and HPO42- OH3PO4 and HPO42- O H2PO4- and PO43- HPO42- and HPO43- Show transcribed image text Here’s the best way to solve it. What is the conjugate acid of each of the following? What is the conjugate base of each?H2PO4−OpenStax™ is a registered trademark, which was not involved in The conjugate base of H2PO4- is HPO42-. 32 Question: 1. b. Phosphoric acid reacts with water to yield dihydrogen phosphate ions and hydronium ions:H3PO4+H2O⇌H2PO4^−+H3O^+Identify the conjugate acid-base pairs. H3PO4 → H2PO4- + H+ H2PO4- → HPO4 2- + H+ HPO4 2- → PO4 3- + H+ The left hand side is the congugate acid and the P species on the right hand side is the conjugate base. What is the pH of pure water? 3. Get your coupon Science Chemistry Chemistry questions and answers What is the conjugate acid of H2PO4- (aq)?a) H3O+b) PO4-3c) H3PO4d) HPO4-2e) H3P We would like to show you a description here but the site won’t allow us. ANY FIVE (7x2=14) 1. 75 dihydrogen phosphate (H2PO4-) hydrogen phosphate (HPO42-) 7. This amphoteric behavior allows HPO42- to participate in buffering systems, resisting changes in pH. In this case, H2PO4- donates a proton to become HPO42-. Question: (a) What is the conjugate acid of H2PO4-? enter formula: (b) What is the conjugate base of HSO4-? enter formula: (c) Identify the acid, base, conjugate acid, and conjugate base in the following reaction: What is the conjugate acid of H2PO4 (aq)? Group of answer choices HO H2PO H2O OH HPO. Jan 7, 2026 · A very large Ka value indicates a strong acid because the equilibrium lies far to the side of the dissociated ions. Acids are substances that release hydrogen ions (H+) in aqueous solutions, resulting in an increase in the concentration of hydrogen ions. Dihydrogenphosphate is a monovalent inorganic anion that consists of phosphoric acid in which one of the three OH groups has been deprotonated. H_3PO_4 c. 共轭这个理解也就是在共轭复数有些形象，前两个是什么原因… 显示全部 关注者 127 被浏览 看到了答案们清一色地都在推荐大名鼎鼎的An Introduction to the Conjugate Gradient Method Without the Agonizing Pain我就放心了。答主在ZJUCS的一门应用数学课程需要我们认真研习共轭梯度法，于是我对这篇文章做了一个重新演绎，翻译成了中文的文档。本文的核心内容是讲解共轭梯度法，但也捎带阐述了梯度法和 两个实部相等，虚部互为相反数的复数互为共轭复数 (conjugate complex number)。 所以，实部相同虚部相反的——z=a+ib (a，b∈R)以及 \bar {z} =a－ib（a,b∈R)，这么一对共轭复数，放在复平面上，他俩是关于实轴对称存在的。 图 这不就很车轭么。 共轭复数，两个实部相等，虚部互为相反数的复数互为共轭复数 (conjugate complex number)。 当虚部不为零时，共轭复数就是实部相等，虚部相反，如果虚部为零，其共轭复数就是自身。（当虚部不等于0时也叫共轭虚数）复数z的共轭复数记作zˊ。同时, 复数zˊ称为 Dec 18, 2017 · 谢邀。 这两个词在数学术语里面都是多义词。“ 共轭 ”可以指这个 z ，也可以指这个 P 1 A P ，“ 对偶 ”可以指这个 V ∗ = {f: V → R linear} . 32 The conjugate base of an acid is formed when the acid donates a proton (H+). An aqueous solution of the weak acid HZ, initially 0. Write the formula of the conjugate acid for each of the following Brønsted bases. HCO3 Jun 12, 2023 · The conjugate acid of H2PO4 is H3PO4. com member to unlock this answer! Create your account View this answer Oct 26, 2020 · Chemistry Itzel R. 93 at 25˚C. 12 acetic acid (CH3COOH) acetate (CH3COO-) 4. Jan 12, 2026 · Introduction to Buffer Solutions Definition of Buffer Solutions A buffer solution is a chemical substance that can maintain a stable hydrogen ion concentration (pH) when small amounts of acid or base are added. What are the conjugate base and conjugate acid of H_2PO_4? HPO, a From what acid and what base were the following salts made: K_2SO_4, NH4Cl, and Ca (No_3)_2? Define the term salt. This concept is valid in all solvents. Answer and Explanation: 1 Become a Study. Then, look at water. The formula for the conjugate acid of HC204 is 1. Answers following Short Questions. Many phosphates are soluble in water at standard temperature and pressure. Was this answer helpful? A conjugate acid-base pair consists of two substances whose formulas differ by one hydrogen ion (H+) or proton. HPO_4^2-d. So here, dihydrogen phosphate. The formula for the conjugate base of H2PO4 is 2. A base-conjugate acid pair is defined as two substances that differ only in the presence or absence of a single proton. Acid Conjugate Base pKa phosphoric acid (H3PO4) dihydrogen phosphate (H2PO4-) 2. Conversely, a small Ka value points to a weak acid, confirming that the majority of the acid molecules remain together. 所以严谨的数学家在使用这两个词的时候，一般会额外声明其代表的具体含义，除非根据上下文可以明确确定它的含义。在数学里面，如果要描述“一对”东西 任何问题可拨打优宁维客服热线了解：4008-168-068。 抗体 - 多肽偶联物（Antibody-Peptide Conjugate，APC）是一类基于抗体靶向性和多肽功能特性的生物偶联药物，通过化学连接子将抗体与多肽分子共价结合，实现靶向递送和特定生物学效应。 Con-jugate 不需要成双成对。 感觉理科中用到的「共轭」来自 conjugate 本身衍生出「共轭」后，而「变位」则来自 conjugate 表示「共轭」以前。 和 inflect 不同，conjugate 的含义是 to inflect (a verb) for each person, in order, for one or more tenses; to list or recite its principal parts，还不是「变位」本身，而是列出完整的变 Apr 9, 2022 · IUPAC关于一些conjugate的定义： conjugate acid–base pair The Brønsted acid BH + formed on protonation of a base B is called the conjugate acid of B, and B is the conjugate base of BH+ . Here's how it works: The acid (H2PO4-) donates a proton (H+). Given the base H2PO4-, when it accepts a proton, it becomes H3PO4. H2PO4 b· H4PO4 c· H3PO4 d· HPO42 e· OH The Correct Answer and Explanation is : The correct answer is b. In the case of phosphate species, they exhibit different protonation states depending on the pH of the solution. OH^-. For example, if we consider H3PO4 as an acid, after losing one H+, it becomes H2PO4-, which is its conjugate base. In the case of H2PO4-, it can donate a proton to become HPO4^2-. In this case, H2PO4- is acting as a base, so its conjugate acid will be formed when it gains a proton. The correct answer is H3PO4⇌H++H2PO4−. The conjugate acid of H 2 PO 4- is as follows: H2PO4- + H +→ H 3 PO 4 The conjugate base is formed by the expulsion of a proton from the particular acid. What is Ka for HZ at this temperature? Learn about conjugate acid. H2PO4- can accept a proton to form the H3PO4 species or lose a proton to form the HPO4 (2-) species, depending on the pH of the solution. Jan 22, 2025 · To determine the conjugate acid of H 2P O4−, let's follow these steps: Understanding Conjugate Acids: A conjugate acid is formed when a base gains a proton (H +). Understand what a conjugate is, how it is formed, how to identify conjugate acid, and see examples of conjugate acids with their pairs. What is amphoteric substance The acid, HA, is a proton donor which can lose a proton to become its conjugate base, A −. Jun 14, 2025 · So, Is H3PO4 an acid or base? H3PO4 is a weak acid because some parts of the H+ ion remain bounded when dissociating it in an aqueous solution. So, the formula for the conjugate base of H2PO4- is HPO4^2-. Dihydrogen phosphate. Apr 30, 2020 · Upload your school material for a more relevant answer The conjugate acid of H2PO4- is H3PO4 or phosphoric acid with a added proton. If it is conjugate acid, add a proton then remove a negative charge. Acid + Base ---------> Conjugate Base + Conjugate Acid An acid donates hydrogen … View the full answer Previous question Next question Transcribed image text: The conjugate acid of H2PO4 is H4PO4 H3PO4 HPO42 OH Acid Conjugate Base pKa phosphoric acid (H3PO4) dihydrogen phosphate (H2PO4-) 2. The strength of a weak acid is quantified by its acid dissociation constant, value. Acid B is. 5 days ago · 13. This is the conjugate acid of the H2O base. 21 hydrogen carbonate (HCO3-) carbonate (CO32-) 10. Write down two characteristics of acidic salts. Similarly, the species which accepts the proton in the chemical reaction is called the Bronsted-Lowry base and after gaining the proton it forms the conjugate acid of the base. Most acid–base reactions are fast, so the substances in the reaction are usually in dynamic equilibrium with each other. In this reaction, the base H2PO4– loses a proton to form its conjugate acid, HPO42–. This follows the definition of a conjugate acid in Brønsted-Lowry theory. The species that results from the loss of a proton from a given acid is its conjugate base.

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