Show how you calculated how much OH minus would need to be added to 20.0 mL a 0.1 M solution of weak acid to obtain a buffer with the correct pH. pH = 7.1 pKa = 7.21

Q: TiF4 is being added to a mixture. What mass of TiF4 is required in order to ensure that  18.04g of…

A: We know that ,Molar mass of TiF4 = 123.86 g/molMolar mass of Ti = 47.87 g/moli.e. to add 47.87 g of…

Q: Consider the following balanced equation: 2N₂H4(g) + N₂O4 (g) → 3N2(g) + 4H₂O(g) Complete the…

A: A stoichiometric reaction is a reaction where a relationship is developed between the amount of the…

Q: A chemist makes 420. ml. of iron (111) bromide (FeBr.) working solution by adding distilled water to…

A: Concentration of stock solution of FeBr3 in a water = M1 = 4.11 M Volume of stock solution of FeBr3…

Q: For many purposes we can treat nitrogen (N₂) as an ideal gas at temperatures above its boiling point…

A: Given : Initial temperature of gas = 38.0°C = 311 K Final temperature of gas = 58.0 °C = 331 K…

Q: For many purposes we can treat nitrogen (N₂) as an ideal gas at temperatures above its boiling point…

A: We can solve this question by using ideal gas equation i.e. PV= n RT whereP = pressure of gas, V =…

Q: The pH of a solution of C₂H₅NH₂ is 9.47 at 25 °C. What is the H⁺ concentration in this solution?.

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A: Given are organic compounds.we can prepare given product from benzene by various Aromatic…

Q: Provide the correct IUPAC name for the skeletal (line-bond) structure shown here. |

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Q: Use stepwise synthesis including reagents and intermediates to complete the following multi-step…

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Q: hydrogen by the resonance and the inductive mechanisms. a = acceptor d = donor n = no effect :0: 1.…

A: The inductive effect mainly arises when there is a difference in electronegativity values of the…

Q: Molecule NO₂Br NH3 SiO₂ NB OF2 BF3 SiH.S SiF 2Cl2 03 Total Valence electrons Lewis dot structure…

A: We have to complete the table shown below

Q: I. If the atmospheric pressure at the time of the experiment was 752 torr, the temperature was 25.0…

A: The reaction between magnesium metal and aqueous solution of hydrochloric acid to produce hydrogen…

Q: D. E. Br2 hv H2 Pd/C

A: First 3 answers is given so giving you the remaining 2 answers. Question D :-  is example of free…

Q: Synthesis

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: The K₂ of a weak monoprotic acid is 2.78 × 105. What is the pH of a 0.0835 M solution of this acid?…

A: Given question related to calculating the pH of the given weak acid.

Q: Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers,…

A: Given are pairs of cyclohexane derivative.Both are disubstituted cyclohexane.

Q: 3. Draw a Newman projection along the indicated bond, looking from a to b, for the following…

A: The projection of the molecule along a C-C bond is known as a Newman projection. The substituents…

Q: What is the mass in grams of 41.90 moles of Nal?

A: Given:NaINumber of moles of NaI = 41.90 molCalculate the mass of NaIA mole is described as the…

Q: sys name for the compound shown here.

A: Rules of IUPAC-1) Select the longest chain as parent carbon chain.2) Numbering starts from those…

Q: What is the expected multiplicity of the indicated carbon atoms in a proton-coupled 1³C NMR…

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Q: Draw the ground state split d-orbital diagram for  [Co(NH3)6]Cl3

A: We have to draw ground state split d-orbital diagram for [Co(NH3)6]Cl3

Q: 4. Identify whether the following molecules are not isomers (unrelated molecules), constitutional…

A: Constitutional isomerism, also known as structural isomerism, is an isomerism type in which…

Q: Given the following reaction: 4H2O(g) + 3Fe(s) = Fe3O4(s) + 4H2(g) How much iron( in grams) is need…

A: The given chemical reaction is .The volume of the hydrogen gas is  .The temperature of the container…

Q: Predict the Product. Predict the major organic product(s) for the following reactions. مد ہلی OH 1.…

A: Given are organic reactions. The reactions are amide and ester formation reactions.

Q: [17] The dissociation reaction A₂ 2A is illustrated below: 8 a) Is AG positive, negative, or equal…

A: This problem is based on Second law of Thermodynamics. Here, ∆G=∆G0 + RTlnQ. Where, Q= reaction…

Q: 1 N HCEC-CH₂ CH₂ + HBr Student Name:.. OH H₂O CH₂Cl₂ K₂Cr₂O7 H₂SO4 Student ID:. ****** *****

A: The first reaction is an example of Markovnikov rule.The second reaction is an example of a…

Q: Write a balanced chemical equation based on the following description: solid barium carbonate…

A: A balanced chemical reaction is one which has the same number of individual atoms on both reactant…

Q: How do you do the Mechanism? Please do the Full Reaction so I can see whats going on also, dont…

A: The given reaction is an example of an aldol condensation reaction.

Q: Correct each molecule in the drawing area below so that it has the structure it would have if it…

A: The given compounds contain two functional groups..The first functional group is carboxylic acid The…

Q: 4. Draw the chair conformations of cis-1,2-dimethylcyclohexane. Label each and rank their stability…

A: The question is based on the concept of stereochemistry.We need to identify the more stable chair…

Q: Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below.…

A: The oxidation number of some common elements is written and the unknown oxidation number is taken as…

Q: Og: NaⓇ

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Q: Total Molecule Valence. electrons FOCI HPF₂ SO₂ HCN H₂CO SOCI₂ NOCI Lewis dot structure (resonance…

A: We have to complete the table shown below:

Q: Molecule FOCI HPF₂ SO₂ HCN H₂CO SOCI₂ NOCI IF₂CI Total Valence electrons Lewis dot structure…

A: Valance electrons of Hydrogen-1, Carbon-2, Nitrogen-3, Oxygen-4, Fluorine-5, Phosphorus-3, Sulfur-4,…

Q: 3-5.00 grams of potassium carbonate and 5.00 grams sodium carbonate were treated separately with…

A: Given data isMass of potassium carbonate = 5.00 grams mass of potassium carbonate = 5.00 grams

Q: Predict the major otherwise, ex = excess. a) The product on the right is made by renating the…

A: Given reactant is aldehyde.CH2=PPh3 is phosphorus ylide and used for Wittig reaction. In Wittig…

Q: Curved arrows are used to illustrate the flow of electrons. Follow curved arrows and draw the…

A: Alkyl halide reacts with a base to form an alkene and this reaction is called an elimination…

Q: Consider the structures below labeled A-E, including any resonance structures of equal or different…

A: Bond order :- The number of bonds between two atom is called bond order. We know that, Higher the…

Q: Combustion of hydrocarbons such as dodecane (C₁2H₂6) produces carbon dioxide, a "greenhouse gas."…

A: Combustion reaction:In combustion reaction there is formation of carbon dioxide and water in…

Q: Mass of Can: 13 grams Mass of can and water: 93.3 grams Initial food sample: 3.30 grams final food…

A: Answer:In this problem, to find out the calorific value of heat its premeasured value of mass is…

Q: Which of the following involves the greater amount of heat transfer? a. A pool containing 2.5 * 105…

A: Heat is one form of energy. It can be transferred from one form to another form as it can neither be…

Q: For many purposes we can treat ammonia (NH3) as an ideal gas at temperatures above its boiling point…

A: The relationship between a fixed amount of gas's pressure, volume, and absolute temperature is…

Q: In aldol reaction 2-Chiral aldehyde reacts with Cis-enolate by anti-anti-felkin selectivity where as…

A: In the aldol reaction, Felkin and anti-Felkin selectivities refer to the stereochemical outcomes…

Q: 11 Considering the three structures depicted below, which of the following statements is entirely…

A: The acidity of hydracids increases as we move down the group. That's why, thiols are more acidic…

Q: Please sketch the HOMO and LUMO of chloromethane.

A: Molecular orbitals (MOs) are formed by the overlap of atomic orbitals (AOs) from individual atoms in…

Q: Provide the correct IUPAC name for the skeletal (line-bond) structure shown here.

A: IUPAC nomenclature of cycloalkenes:• Identify the longest continuous parent carbon chain.• Identify…

Q: 8. Baking powder is a mixture of tartaric acid (CHO) and sodium hydrogen carbonate [NaHCO₂]. One…

A: Baking soda is mixture of tartaric acid and sodium hydrogen carbonate.1 mole of tartaric acid reacts…

Q: Using your knowledge of M.O. theory, please construct a molecular orbital diagram for the C-CI bond…

A: To construct the molecular orbital diagram for the C-CI bond in chloromethane using sp3 orbital from…

Q: The molar absorptivity of ascorbic acid is determined using a 0.50 mM (±0.04 mM) solution. The…

A: is the sample's molar absorptivity, commonly known as its extinction coefficient. It is a…

Q: Which aqueous solution would have the lowest osmotic pressure at 298K? A)0.04 M CaCl₂ b)0.05 M NaBr…

A: Osmotic pressure is defined as the pressure that would have to be applied to a solution to prevent…

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.