A weak acid has Ka of 4.47 x 10-4.  What is pKa for this weak acid?

Q: hot lump of 36.1 g of aluminum at an initial temperature of 51.1 °C is placed in 50.0 mL H2O…

A:

Q: Ser His O Asp Lys

A: According to the question, we need to determine which amino acid is NOT capable using its side chain…

Q: equilibrium constant

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A compound contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular mass of the compound is 136…

A: Given :-  % by mass of C = 70.6 % % by mass of H = 5.9 % % by mass of O = 23.5 %  Molecular mass of…

Q: Consider the combustion of compressed methane, and liquid hydrogen. Which one will release more…

A: When methane gas is combusted it releases energy and specifically combustion of 1 gm of methane…

Q: This picture shows A) an insoluble ionic solid B) a partially soluble ionic compound C) a fully…

A: A compound is said to be soluble if it is distributed homogeneously when it is dissolved in a…

Q: Saved The following mechanism has been suggested for the reaction: 11 H2O2 + 2H+ + 21-→ I2 + 2H2O…

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Q: Calculate the pH of each of the following solutions (b) a solution that is 0.115 M in NaCIO and…

A: Given: pH of the given solution has to be calculated. (b) a solution that is 0.115 M in NaCIO and…

Q: Bond angles Dipole moment Formula Molecular structure KrF4 KrO2 BeH,2- SF;* BrF5 XeF4

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Q: Construction of a voltaic cell Consider a iron-silver voltaic cell that is constructed such that one…

A: At anode , oxidation takes place and at cathode reduction takes place.

Q: For the reaction at equibrium. 3Feis) + 4H2Oul - Fez04ls) + 4H2(a), removing some of the product.…

A: As per Le Chatelier's principle, when any system in equilibirum is subjected to any external change…

Q: Consider the following decay serles: a b b 214 d 218 214 214 210 Pb Po Pb 82 84 83 Which type of…

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Q: Will a precipitate form when 10 mL of 0.015 M [Hg *] and 10 mL of 0.015 M [SO 42] are mixed? Ksp of…

A: We have to predict whether ppt will form or not.

Q: 2. Outline syntheses of the following compounds, starting with triphenylphosphine, an alkyl halide…

A: Wittige reaction : The reaction  between ylide and aldehyde results olefin. Stabilized ylides and…

Q: .Which of the following elements have same total number of electrons in p orbitals? a.Na and K b. K…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Balance the reactions below using the change in oxidation number method. 1. РЬО, + HBr - PbBr, + O,…

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you…

Q: Suppose that the total mass of the reactants in a chemical reaction was 100.00000 How many kiejouies…

A: Given: Total mass of reactants = 100.00000 g. And the total mass of products formed = 99.99900 g.

Q: What is the molecular formula of each compound?

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: 2600 K, ΔG° = 775 kJ for the vaporization of boron carbide: B4C(s) → 4 B(g) + C(s) Find ΔG and…

A: Given, □G° = 775 kJ Reaction Quotient (Q) = (PB)4   = (1.0×10-5)4 = 1×10-20

Q: With this information and the specific heat of water, 4.184 J/(g·°C), calculate the specific heat,…

A: Given,  The specific heat of gold metal,  when 38.600 g Au metal at 65.17 °C added to 60.00 g of…

Q: Zn and Sn ions coprecipitate when they exist in solution to form mixed oxides. Suggest a…

A: a. Given that, Zn and Sn ions coprecipitate when they exist in a solution to form mixed oxide. We…

Q: H* + UO5² → UO2*2 + H2O + O2

A: Redox Reactions are those reactions in which the oxidation (Addition of Oxygen or Removal of…

Q: 32. Calculaie the umber of gras of NaC in 500.0 ml. of a 2.00 M NC solution molar mas. NaCI58.45…

A: 32. Given :-  Molarity of NaCl solution = 2.00 M  Volume of NaCl solution = 500.0 mL  MW of NaCl =…

Q: 0-H + HB + B

A: Aldol condensation: An aldol condensation is a type of condensation reaction in organic chemistry in…

Q: Construct the expression for Ka for the weak acid, CH,COOH. CH,COOH(aq) + H,O(1) = H,O*(aq) +…

A: Given data :

Q: A chemistry student weighs out 0.261 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: Given-> Weight of citric acid = 0.261 gm Volume of citric acid = 250 ml  Molarity of NaOH =…

Q: At 400°C, Ke- 64 for the equilibrium H2lu) • Izlal - 2Hial. If 3.00 mol H2 and 3.00 mol l2 are…

A: Given,   Moles of H2 = I2 = 3.0 mol Volume = 4 L Molarity of I2 = H2 = 3/4 = 0.75M Kc = 64

Q: 4.When the equation below is balanced the coefficient of nitric acid, HNO3 is. Zn + HNO3 - Zn (NO3)2…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Adenoie osphate (ATP) SAdnyionine SAM) What is the role of each reactant in the reaction above? What…

A: Question is that, what is the role of the reactant.? 1. In the first step reaction, triphosphate…

Q: Calculate for the mass of Boric acid required to prepare 250ml of 2 M solution.

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Q: Br2(l) + 2 e - 2 Br (aq)E° = +1.09 V Min°+ (aq) + 2 e -- Min (s) E° = - 1.18 V which of the…

A: We have to find the strongest reducing agent.

Q: . explain each step with words on how to get the structure. Step 1: Calculate the Index of…

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Q: *Given the following information, answer the questions 6 and 7 Acid pKa Acid NH3 HC=CH pKa CH:CH:OH…

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Q: 7. Calculate the percentage of oxygen in carbonic acid H2CO3 A) 75.3% B) 72.0% C) 77.41%…

A: we need to calculate the percentage of O in carbonic acid

Q: 1. BH3, THF 2. NaOH, H202 Br2 но Et NaOH, H20 HBr, ROOR OMe

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Q: 1.Calculate the molarity of a solution made by dissolving 15g NaOH in water and diluting to 1.00…

A: Weight of NaOH = 15 gm Molar mass of NaOH = 40 g/mole Volume = 1.00 × 102 ml = 0.100 L. (1 L =…

Q: 3Fe(s) + 4H2O(g)  Fe3O4(s) + 4H2(g)  What is the appropriate equilibrium constant expression for…

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Q: 6. a. What is the mass in grams of 0.308 moles of Pt? b. If a sample of an element has a mass of…

A: The relation between number of moles and molar mass of an element is given by- number of moles =…

Q: pH of each aqueous solution:

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Q: In which of the following pure compounds would intermolecular hydrogen bonding be expected? (Select…

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Q: 14. The grams of SO2 produced will be: A) 65.70 B) 72.00 C) 81.35 D) 61.66 E) 63.59

A: SO2 molecular weight = 64. Therefore 1 mole of SO2 compound weight is equal to 64 grams ( 63.59).

Q: A chemist fills a reaction vessel with 3.93 atm methane (CH) gas, 1.61 atm oxygen gas, 5.89 atm…

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Q: 000 1 K=- K=2 At equilibrium? At equilibrium? yes no yes no K 4 & = K= At equilibrium? At…

A: Given:

Q: 800 705 kJ 600 497 kJ PE (kJ) 400 200 175 kJ 100 Reaction Progress Created by E. Lee for Virtual…

A: Given: potential energy of activated complex without any catalyst = 705 KJ. And the potential energy…

Q: Весause s is a strong acid, it dissociates almost com- pletely in water. That means the…

A: We have given that, the concentration of H+ is nearly equal to the concentration of HNO3.

Q: For the following reaction, AP(C6H14VAt was found to be -6.2 x 10-3 atm/s. COHA(@) → C6H6(g) +…

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Q: 13.40 Calculate the equilibrium constant for the following reac- tions using data from the standard…

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Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

A: `Given the reaction: H2(g) + Cl2(g) → 2HCl(g) ∆H = -184.6 kJ We have to calculate the mass of…

Q: Write the formula of the conjugate base of the active ingredient in aspirin, acetylsalicylic acid,…

A: • We need to write the formula of the conjugate base of C9H8O4

Q: Radioactive decay is measured in terms of "half-life", which is the number of years required for…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.