26. What is the pH of a buffer that is 0.12 M in lactic acid, CH3CH(OH)COOH, and 0.10 M in sodium lactate? Ka for lactic acid is 1.4x10−4. Select one: a. 5.80 b. 4.67 c. 3.77 d. 1.78

Q: * When dissolved 30% wt of NaCl in water solution and the weight of solution is 112 g calculate the…

A:

Q: Intermolecular means Hydrogen bonds can occur among molecules O False O True

A:

Q: From the following list, choose 2 reagents and calculate the quantities that are required to make…

A:

Q: Please Write the IUPAC name of the compounds. Observe proper punctuations. Make sure that there are…

A:

Q: The physical properties of the substances are influenced by intermolecular forces of attraction.…

A: The intermolecular forces of attraction between the molecules of same type via hydrogen bonding is…

Q: ydrogen per Exide in the pr hydroxide Deroxidase

A: Part 1:  We know that "Uricase acts on uric acid to produce allantoin, carbon dioxide and hydrogen…

Q: 2. How much heat is absorbed during photosynthesis when 9.22 grams of glucose C6H12O6 is produced?…

A: Given that -  Balanced chemical reaction -  6CO2 + 6H2O ----> C6H12O6 + 6O2  , ∆H = +2803 kJ…

Q: There are five pure substances. The molecular component is shown per substance. Based on this…

A:

Q: 47. The boiling point of alcohols is A. Higher than B. Lower than C. Equal to the boiling point of…

A: Alcohols have -OH functional group. Ethers have R-O-R group.

Q: Which substances can react with potassium borohydride, converting the product into alkene alcohol…

A: Potassium borohydride is very much effective for the reduction of aldehydes and ketones. And it is…

Q: HILIC can be used to separate cations of the same charge, true or false?

A: True

Q: A scientist in the Narcotics Section at the Crime Lab receives a mysterious white powder for…

A:

Q: For the molecule SO2-3 , draw the 3D Lewis structure then, give the electronic geometry (EG), the…

A: In electronic geometry we consider bond pair as well as lone pair while in molecular geometry we…

Q: Given the reaction: Hg2+  + Cd   ⇔  Cd2+  + Hg

A:

Q: Sphingomyelins are found in animal cell membranes, especially in the myelin sheath that surrounds…

A:

Q: TRUE OR FALSE In the Lucas test, the carbocation of n-propyl alcohol is more stable than the…

A: Anhydrous ZnCl2 and HCl is known as Lucas reagent.It is used to distinguish primary, secondary and…

Q: What is the concentration (M) of hydronium ions in a solution that at 25.0°C has a pH = 4.282?…

A:

Q: What is the type of hybridization of the carboxyl carbon in the mechanism? Osp1.5 Osp3 Osp2 O sp

A: The hybridisation of an atom depends upon the number of Sigma bond attached to it.

Q: Choices:  (a) the reactants can be synthesized in a reaction between an alcohol and an acid…

A: In the given reaction the carboxylic acid is converted into alcohol by the reaction with lithium…

Q: which of the Metal will most likely undergo reduction the fastest, based on the SRP table?  write…

A: ✓Standard reduction potential measures the tendency for a given chemical species to be reduced.

Q: Phosphoric acid H3PO4 is a weak acid, where as hydrochloric acid is a strong acid. Explain how the…

A: A weak acid is defined as an acid which undergoes partial ionisation in aqueous solution. A strong…

Q: Compare how entropy changes for the following two systems : System A: A gas and a solid react to…

A: Entropy is the measurements of randomness. The gases have more entropy than liquid and solid.

Q: Criven a Structure in which given number A, B, C. tell the lone pairs and geometry ( linear,…

A: Hybridisation is defined as mixing of orbitals so as to rehybridize to form new set of orbitals…

Q: Tirofiban (C22H36N2O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281…

A: Given the concentration of tirofiban HCl before infusion = 0.281 mg/mL  Since we need tirofiban,…

Q: If the only bonds broken during glucose oxidation were the carbon-carbon bonds, how much energy on…

A: (1) In a 6 carbon sugar, there are 5 carbon-carbon bonds. 673 kcal/mole divided by 5 equals…

Q: What structure will characterize the intermediate in this reaction mechanism, * after the leaving…

A: Detail description is given below

Q: sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at 28 °C and 810…

A:

Q: 16.What is the conjugate acid of NH3? Select one: a. NH2+ b. NH3 c. NH4+ d. NH3+

A: Conjugate acid and conjugate base

Q: 71. What is the major product formed from this reaction? A. o-bromophenol B. p-bromophenol C.…

A: Here we are required to find the major product formed.

Q: 9. Based on the illustration, what is the classification of the given structure? Answer: CH3…

A: We can classifie given compound on bases of their functional group.

Q: 4. If rate law for the reaction  2A + 3B → products It is first order with respect to A and second…

A: The rate law for a chemical reaction is an expression that provides a relationship between the rate…

Q: 1) 2) 이 거 + m ○ u Mo + 'H f Ome MeoNa Meol [H+] HO MeONa

A:

Q: The mole is to the chemical amount as the gram is to mass False True *

A: The correct statement is given below

Q: Draw GeO2 3-D Lewis structure

A: Total valence electron are 16 so there will be 4 bond pair and 4 lone pair

Q: Consider three 1.0 L flasks labeled A, B, and C filled with the gases NO, NO2, and N2O,…

A: There are there states of matter. Solid, liquid and gas. Gas is less dense than solid and liquid.

Q: Question 2 The molar heat capacity of a sample of gas at constant-pressure varies with temperature…

A: #Q.2: We can find enthalpy change at different temperatures using Kirchoff's equation which is:…

Q: Use bond energies listed in Table available on Canvas to find AHx for the reactions shown below: 1)…

A:

Q: 12:35 Th 7 21 thg 5 a bai tap c1-đã gộp-đã nén - میں ویلی OH 0%+0² [a OH oo-oo OH Br oo-ob In $ H…

A: Given,  Grignard reagent ( RMgX) used for conversion of carbonyl compounds such as ketones Or…

Q: what mass of NaBr is needed to prepare 1.12L of a 0.15 M aqueous solution of NaBr?

A:

Q: Molarity tells us the number of moles * of solute in one liter of a solution. O False True O O

A: Concentration of any solution can be calculated by molality, molarity, ppm etc.

Q: For this cell the cell reaction is as follows: 2AgCl(s) + H2(g)  2Ag(s) + 2HCl(aq) (a) Give the…

A:

Q: The cell potential of the cell is 0.60V measured at 300C. The half-reaction of the cell is Cr|Cr⁺³…

A:

Q: TRUE OR FALSE 9.When n-propyl alcohol undergoes a elimination reaction, the resulting product is an…

A:

Q: Name the compounds: CH 3 H₂C - CH₂ 1 CH₂ CH₂ CH3 Y CH₂-CH-CH-CH₂CH Br 3.5-3 CH CH₂ 5-5

A: given name of the compounds According to IUPAC nomenclature

Q: 1. Classify the following hydrocarbons as alkane, alkene, alkyne, or aromatic hydrocarbon. 1.…

A: Hydrocarbons can be classified as  alkane, alkene, alkyne , aromatic compounds. Alkane hydrocarbons…

Q: A galvanic cell is powered by the following redox reaction: 2+ MnO4(aq) + 2 H₂O(l) + 3 Cu* (aq) →…

A: A question based on electrochemical cells that is to be accomplished.

Q: Considering the standard reduction potential for Tin (see below), what is the Eored for the…

A: Generally we will consider reduction potential values at 298K and for 1M concentration are standard…

Q: II. Write the structural formula for the major organic products from each of the following…

A: 1st reaction is esterification reaction.  2nd reaction is hydrolysis of amide. It produces…

Q: 46. Which of the following is true regarding the boiling points of alcohols having the same number…

A: Boilling point depends upon Molar mass,no of branching,Surface area

Q: (88) (89) (90)

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.