What volume (in ml) of 2.0 M NaOH must be added to 500 mL of 0.300 M acetic acid to produce a buffer solution with a pH of 4.3? (Ka = 1.75 x 105) الأنتزامد كلية العلو13.5 .b a. 26.7 c. 16.3 d. 19.4 e. 22.9

Q: Which of the following is a tertiary amine? CH3 OCH3-C-CH3 NH₂ O CH3 OCH3-C-CH3 NH CH, CH₁-N-CH₂ CH3…

A: The primary, secondary, and tertiary amines can be determined by the number of carbon atoms bonded…

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: The rate at which a certain drug is eliminated by the body follows first order kinetics with a…

Q: 19. Barium has a higher first ionization energy than strontium, based on their positions in the…

A: Question is releated with basic chemistry.

Q: What is the electron-pair geometry for Cin CO₂? Ⓒ

A: The first structure is of bromine trichloride and electron pair geometry means lone pairs are…

Q: Arrange the following compounds in order of increasing acidity (from least acidic to most acidic):…

A:

Q: Please complete the following table regarding the below compound: Molecule Electronic Shape…

A: MOLECULE…

Q: From the following list select all the correct statements about the following molecule.

A: A question based on molecules. A molecule with different formal charge are that are to be…

Q: Which of the two compounds would you expect to undergo the fastest E1 elimination? Explain briefly.…

A: The starting compound is 2-bromo-2-methyl propane is given.Only difference in these two reaction is…

Q: Draw an energy diagram for the reaction of (CH3)3CBr + CH3CO₂ → (CH3)3COCOCH3 + Br including the…

A:

Q: Complete the table below for calculating the molar mass of the ionic compound silver sulfide.…

A: For determining molar mass of a compound we need to know the formula of the compound.

Q: Intensity (PA) Intensity (PA) 400000 350000 300000 250000 200000 150000 100000 50000 0 -50000 700000…

A: The GC spectrums for the two reactions are givenReaction 1:Reaction 2:I

Q: be. making sure to count the drops, use a dropper to add 30% calcium chloride solution. swirl the…

A:

Q: Calculate the pH when 200.0 mL of a 1.00 M solution of H₂A (K₂1 1.0 x 10-6. K₁2 = 1.0 x 10-10) is…

A: The pH of any acidic buffer solution can be determined by Henderson's equation(in terms of mmoles).

Q: Draw the Lewis structure of SF showing all lone pairs. Identify the molecular geometry of SF4.…

A:

Q: 21. Which one of the following is ionic compound? A) Brz B) BeCl₂ C) CaCO3 D) PFs

A: Ionic Bond :- The chemical bond formed by complete transfer of electrons from one atom to another is…

Q: Suppose a 250. mL flask is filled with 0.50 mol of CO, 0.10 mol of NO and 1.6 mol of CO2. The…

A:

Q: The molar solubility of lead (II) chloride (PbCl2) is 2.9 x 10-2. What is the Ksp of PbCl2? Select…

A:

Q: For the following reaction determine whether AS for the reaction (AS) will be positive, negative, or…

A: Change in entropy is represented by delta S and it is a measure of disorder  .

Q: Covalent bonding calls for increased. O electron density magnetic force O protonization O number of…

A: Covalent bonding calls for increased ----on and around the inter-nuclear axis.

Q: Select the correct IUPAC name for the following molecule form the list below. CI u Br…

A: We know that the priority order as follows: Functional group > Multiple bond > Substituents…

Q: Which of the following is a secondary alcohol?     a)  2-methyl-2-propanol   b)…

A: Aliphatic hydrocarbon Compound contains OH group is called Alcohol

Q: zinc + sodium hydroxide + water →    sodium zinc hydroxide + hydrogen gas   If 180.20 grams of…

A:

Q: 1. The following chemical reaction: A → products shows first order kinetics with respect to A; rate…

A: For the chemical reaction : At the time(t) the concentration of the reactant [At]  = 0.152 mol L-1…

Q: Which of the following elements may never occupy the central position in a molecule? O A. Bromine B.…

A: In a molecule, the central position can typically be occupied by one of three elements: silicon (D),…

Q: Give typed full explanation not a single word hand written otherwise leave it what is [H3O+] for a…

A: Given Concentration of HCl  = 0.500 M

Q: 2 Draw a Lewis structure for SeBr₂0. • Do not include overall ion charges or formal charges in your…

A: In the given question, we have to write the Lewis structure of SeBr2 O

Q: The decomposition of HI(g) to H (g) and I (g) at 600 K is 2nd order with a rate constant, k, of…

A: Order of the reaction  = 2Rate constant (k) = (a) Concentration of HI after 78.0 hours or 4680 min…

Q: Give only typing answer with explanation and conclusion What is the activity order of acyl…

A: The electronic and steric properties of various substituents on the acyl group can be used to…

Q: The solubility of KNO, is 155 g per 100.0 g of water at 75 °C and 38.0 g at 25 °C. What mass of KNO,…

A: A saturated solution of KNO3 is cooled to form crystals.

Q: HO

A: By using CIP Rule priority is determined .After giving priority provided lowest priority group…

Q: what are the roles of following in crime scene investigation and how do they interact with each…

A: The following positions often play significant roles and interact with one another during a crime…

Q: systematic name for [Rh(CN)5(OH2)]^2-

A: The systematic naming of coordination compounds is a structured approach that involves naming the…

Q: Identify the major product of the reaction between 1-butanol and TMSCI, Et3N. O O 0 0 O OTMS Ts OTS…

A:

Q: What is the major product of the following reaction? H₂CrO4 heat а I OV II OH OH Ш IV OH OH V COOH…

A: The product for the above given reactants are as follows

Q: 1. Evaluate the reduction potential (in mV, at 25°C) of a nickel sheet in an aqueous solution of…

A: From the diagram, we can see that this Voltaic cell is made of two half cells - the Zn anode where…

Q: H3C H Rank the following alkenes in terms of stability with 1 indicating most stable. C=C CH₂CH3 Н…

A: We know higher the number of hyperconjugating structures higher will be the stability . Again we…

Q: 4. In your own words, explain the difference between an empirical formula and a molecular formula.…

A: Empirical formula and a molecular formula can we defined using proper example.

Q: write an equation for this lab and explain the observations that would occur: measure out 10 mL…

A: We have to give the chemical equation for the given reaction as well as explanation.

Q: Calculate the volume in liters of a 1.08/molL sodium carbonate solution that contains 125.g of…

A: Concentration (c) = 1.08 mol/LWeight= 125 g

Q: 24. The hybridization on the central atom in NO"¹ A) sp³ B) sp² C) sp'd D) sp

A: A multiple choice question based hybridization. A cationic molecule is given whose hybridization is…

Q: Consider the reaction. A(aq)↽−−⇀2B(aq) ?c=7.07×10−6 at 500 K If a 4.10 M sample of A is heated to…

A:

Q: Give the IUPAC name for each compound. (include R,S designation or E, z configuration if needed)

A:

Q: Two curves showing the rate versus substrate concentration are shown below for an enzymecatalyzed…

A: Correct option : B) X is an activator of the enzyme.Allosteric activator of the enzyme decrease the…

Q: Br 1 CH₂CH3 OA) I OB) II Br || CH₂CH3 Br III CH₂CH3 Br IV CH₂CH3

A: Looks tbe relative position between two substituent. Notice the cis- trans reltion between the…

Q: What type of structural formula is this? N

A: The type of structural formula shown can be explained by the explanation of all the options given

Q: What type of strain is present in this structure? H3C CH3 Ө HOH Н Н A) Torsional B) Angle C) Steric…

A:

Q: Possible alternative brominations include: Veratrole (1,2-dimethoxybenzene) to…

A: Hydrobromic acid  reacts with potassium bromate to form molecular bromine, this molecular bromine is…

Q: A 10.5-g sample of ice at-14.8°C is mixed with 101.9 g of water at 80.0°C. Calculate the final…

A:

Q: Sodium glutamate (commonly known as monosodium glutamate, MSG, with a molar mass of 169.11 g/mol) is…

A: Molar mass of MSG = 169.11 g/molMolarity of the MSG = 0.0858 M1 M = 1 mol/LVolume of solution = 1.92…

Q: the full equations and a net ionic equations for both test tubes in the following experiment

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.