If the Ka of a monoprotic weak acid is 5.9 x 10-6, what is the pH of a 0.21 M solution of this acid? pH = 2.3 Incorrect

Q: Nickelocene is paramagnetic with two unpaired electrons. Rationalise this and suggest a bonding…

A: Nickelocene (NiCp2) is an organometallic compounds in which nickel metal atom is sandwiched between…

Q: 3500 3000 2500 Wavenumber cm-1 2000 1500 1000 500 3920.67 3082.32 2336.05 2235.94 1699.33 1655.52…

A: We need To Analyze The infra-red attached    and To comment on the cleanliness of the sample.

Q: For the reaction A+B↽−−⇀C+DA+B↽−−⇀C+D, assume that the standard change in free energy has a positive…

A: The Gibbs free energy of a system is  at any moment in time is defined as the enthalpy of the system…

Q: predict the major(s) products for the following reactions.

A: We know for elimination both H and leaving group should be anti periplanar i.e at 180o to each other…

Q: A chunk of titanium weighing 19.39 g and originally at 98.06 °C is carefully lowered into an…

A:

Q: Draw the products and balance the equation.

A: Sodium borohydride is a reducing agent. It converts ketones to secondary alcohol and aldehydes to…

Q: Rank the following atoms in order of increasing ionization energy, from lowest to highest: Mg, Na,…

A:

Q: do write the chemical formula for the conjugate base of selenic acid, H₂SeO04. e Write the chemical…

A: According to Bronsted and Lowry concept an Acid is a substance that has the tendency to donate a…

Q: Calculate the molar solubility of lead (II) chloride

A: Check the Ksp value of lead chloride. Using that value, find out its molar solubility.

Q: 102. Calculate the percentage of pyridine (C5H5N) that forms pyri- dinium ion, C-H5NH+, in a 0.10-M…

A: Answer: Here we have to find percentage of pyridine (C5H5N) that forms pyridinium ion(C5H5NH+),in a…

Q: provide the IUPAC name for the molecule

A: When an aromatic compound contains two or more functional groups, it is named as a derivative of the…

Q: Part D A 52.0-mL volume of 0.35 M CH3COOH (Ka = 1.8 x 10-5) is titrated with 0.40 M NaOH. Calculate…

A: Given: Volume of acetic acid  = 52.0 mL Molarity of acetic acid = 0.35 M Ka for acetic acid…

Q: Provide the IUPAC name of the following molecule: 4

A: According to the IUPAC nomenclature, First longest chain of carbon atom is identified. Numbering is…

Q: Add the number of missing lone pairs for the assigned atoms (H is not included) HC NO HCO HCL 00 NO…

A: We have to add the missing lone pairs in the given structure

Q: H3C H₂ - H3C CH3 H CH H OH C-C- CH CH3 CH3 H₂SO4

A:

Q: Is LPG and petroleum gas the same?

A:

Q: H₂C. CH3 CH3 CH3 3,4-dimethyl-2-pentanol O3-methyl-4-ethyl-5-hexanol 2,2-dimethyl-4-pentanol…

A: Since,Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: It is based on the concept of enthalpy and principle of calorimetry.  Here we are required to find…

Q: QUESTION 6 At 298 K, the Henry's law constant for oxygen is 0.0013 M/atm. Air is 21% oxygen. At 298…

A: Given - Henry's law constant for oxygen = 0.0013 M/atm Percentage of oxygen in air = 21% or mole…

Q: In the reaction, CaCO3(s)⟶CaO(s)+CO2(g)   how many liters of carbon dioxide gas, CO2, measured at…

A:

Q: (a) Write the balanced chemical equation that represents the standard heat of formation of HNO3(I)…

A:

Q: In a laboratory experiment, a student has 1 L of solution containing a weak base at a concentration…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base .  it…

Q: но ин НВ

A: The question is based on the concept of organic reactions.   we need to identify the product formed…

Q: How do you get from x^2 to x? show all work please

A:

Q: STARTING AMOUNT X What is the mass in grams of KBr in 0.400 ADD FACTOR x( ) 0.400 0.140 5.47 16.7…

A:

Q: 20.5 Provide reasonable mechanisms for the following transformations. NH₂ BrMg MgBr HS Hº, quench e…

A: When grignard reagent react with ester, then it is one type of nucleophilic addition reaction. here…

Q: 5. At 100.0°C, the equilibrium constant K for the reaction C(s) + 1/2O2(g): CO(g) is 2.58 x 10.…

A: The equilibrium constant is the ratio of the concentration of products to the concentration of…

Q: Review the list of common titration errors. Determine whether each error would cause the calculation…

A: Volumetric titration is a quantitative analytical method of determining the concentration of an…

Q: (b) Decompose the representation below into the irreducible representations of C3v. 2C3 1 C3v T E…

A: An irreducible representation of a group is a group representation that has no nontrivial invariant…

Q: You didn't answer D&E

A: An acid is a species which donates proton while a base is a species that accepts proton.    An acid…

Q: 2. Octanal Coctyl aldehycle) CH₂ (CH₂) CH + Na BHy CH₂OH

A: NaBH4 is sodium borohydride, which is an weak reducing agent.  Hence it reduces the aldehyde to…

Q: What is the molar extinction coefficient (e) for o-nitrophenol at lmax?  Explain how you arrived at…

A: The molar extinction coefficient (ε) for o-nitrophenol at its maximum absorption wavelength (λmax)…

Q: 1. The formula for the conjugate base of HNO3 is 2. The formula for the conjugate acid of NH3 is

A: According to Bronsted -Lowry acid base concept, an acid is a substance which donates proton and base…

Q: Enter your answer in the provided box. Calculate AG for the process: BaF₂(s) = Ba²+ (aq) + 2F¯(aq)…

A:

Q: 33) Increasing gas pressure and decreasing temperature increase the solubility of a gas in solution?…

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: Aluminum (Al) crystallizes in a face-centered cubic cell with a unit cell edge length of 404.5 pm.…

A:

Q: How many moles of formula units are present in 7.2×10^29 formula units of CaCl2?

A: Given: Numbe of formula units of CaCl2 = 7.2 x 1029

Q: The specific heat capacity of tin at 25°C is 2.280×10-1 J/g/K. For a 5.00×102 g sample of tin, how…

A:

Q: 9) The wavefunction reflects the distribution of matter over the space. Hence, not any mathematical…

A:

Q: Which is the correct oxidation half-reaction for the following equation?…

A:

Q: Calculate the percent ionization of acetic acid (HC₂H3O2; Ka = 1.8 x 10-5) solutions having the…

A:

Q: 3. Please convert the wedge-dashed structure to a chair conformation, flip it, and determine which…

A: Solution: In substituted cyclohexane compound there is torsional strain present between substituent…

Q: Examine the following hypothetical ion: WZ2 (W in the central atom and has an atomic number less…

A: Given that, an hypothetical ion is WZ2. Where, W is the central atom has an atomic number less than…

Q: I 1. NaNH, 2. CH3CH₂ NH₂ II E III IV

A: This method used for preparation of higher Alkyne

Q: It need A student ran the following reaction in the laboratory at 679 K: H₂(g) + 12 (9) 2HI(g) When…

A: The equilibrium constant (Kc) is given by the ratio of the product of the molar concentration of…

Q: Give the predicted van't Hoff factor for each of t Ba(OH)2: C6H1206: K3PO4: HNO3: QUESTION 9 What is…

A: The van't Hoff factor for an ionic compound is the number of ions formed when the compound…

Q: 11) What ions, atoms, or molecules (in addition to the water molecules) are present after solid…

A:

Q: a. Using the information provided below, derive an expression to show that the energy of an…

A: The speed of light, c = λv, where λ is the wavelength and v is the frequency. From the equation E =…

Q: If 4 Kg of Gallium (Ga) is reacted with 11 Kg of Nitrogen (N). what mass of GaN will be formed? The…

A: We have given 4 Kg = 4000 g of Gallium (Ga) which is reacted with 11 Kg = 11000 g of Nitrogen (N2).…

Q: The Solubility Product Constant for silver sulfite is 1.5 × 10-¹4. The equilibrium concentration of…

A: Answer: In a sparingly soluble compounds it can be considered that all the dissolved part of the…

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.