The pK, values for the dibasic base B are pKbl = 2.10 and pKb2 = 7.38. Calculate the pH at each of the points in the titration of 50.0 mL of a 0.95 M B(aq) solution with 0.95 M HCl(aq). What is the pH before addition of any HCI? What is the pH after addition of 25.0 mL HCI? pH = pH =

Q: Write the balanced COMPLETE ionic equation for the reaction when iron(III) chloride and sodium…

A:

Q: Which of these is NOT paramagnetic?

A:

Q: View Policies Current Attempt in Progress How many milliliters of 0.145 M NaCl solution must be…

A:

Q: Which of the following statements involving the properties of matter (physical or chemical) does NOT…

A: we have to select one statement that does not belong to the other 3

Q: A 10.0 kg sample of water is used to cool a hot engine. How much heat is removed from the engine if…

A: Molar heat capacity (Cp) :-  The amount of heat required to rise the temperature of one mole of a…

Q: The activation energy for the gas phase isomerization of cyclopropane is 272 kJ. (CH₂) 3- The rate…

A:

Q: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.80. You…

A:

Q: Classify each of these reactions. 2 HBr(aq) + Ba(OH)₂ (aq) - -> 2 H₂O(1) + BaBr₂ (aq) C₂H₂(g) +…

A:

Q: What is the oxidation state of each element in COH2?COH2?     What is the oxidation state of each…

A: The oxidation state of each element in COH2 and The oxidation state of each element in FeBr3

Q: 4. Determine the number of H atoms in 8.50 g of water.

A: As per your indication we solved the 4th question. Please find the below attachment

Q: se the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

A: Which one of the following options is correct

Q: Which of the following statements involving the properties of matter (physical or chemical) does NOT…

A: Physical property can be observed or measured without changing the identity of the substance.…

Q: Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution…

A:

Q: What is the angle between the nitrogen-oxygen bonds in the nitrate (NO3) ion?

A: In order to find the O-N-O bond angle in nitrate ion, NO3-, first we have to plot the Lewis diagram…

Q: What is the molecular formula of this organic molecule?

A:

Q: If 6.14 g6.14 g of CuNO3CuNO3 is dissolved in water to make a 0.850 M0.850 M solution, what is the…

A:

Q: Atomic mass-> 12 6 Atomic number → O 16 O 17 O 15 O 5 16 O 32 O 8 1 1 H 14 7 N 32 16 Using the…

A:

Q: The product of the experiment you performed will undergo nucleophilic aromatic substitution or SNAr…

A:

Q: If 37.8 mL of silver nitrate solution reacts with excess potassium chloride solution to yield 0.344…

A: Balanced chemical equation for the reaction of Silver nitrate and potassium chloride is as follows:…

Q: Consider the following reaction: 2NOBr(g) 2NO(g) + Br₂ (9) for this question. If 0.340 moles of…

A:

Q: What would the speed of each particle be if it had the same wavelength as a photon of violet light…

A:

Q: ammonium bromide sodium nitrite potassium chloride ammonium nitrate The pH will be less than 7. The…

A: ANSWER: Ammonium bromide, is weak acid, the pH is less than 7. Sodium nitrite is weak base, the pH…

Q: reactions and their A + 2B 2C 2C=D equilibrium constants are given. K₁ = 2.07 K₂ = 0.296 ulate the…

A:

Q: 1 H 1.008 3 4 Li Be 6.94 9.012 11 12 Na Mg 22.990 24.305 19 20 21 22 23 Ca Sc Ti v K 39.098 40.078…

A: Dipolemoment of any species can be explained using the polarity of the bond correspond to it. Now we…

Q: Which reaction would produce the following compound? 0 B + enantiomer II IV

A: This is a simple diels alder reaction.  Where diene and dienophile reacts togather to form an cyclic…

Q: = O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Identifying carbon hybridization in simple organic…

A: Hybridization of carbon (C) in hydrocarbons: • Alkane -C-C- in this case all bonds are single and…

Q: monatomic ion with a charge of -2 has an electronic configuration of 1s22s22p63s23p64s23d104p6. his…

A: Atom consist of subatomic particles called electrons, protons and neutrons. In an atom, there is…

Q: Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to…

A: Given,  Mass of BaO2 is = 62.3 g Molar mass of BaO2 is = 169.33 g/mol Moles of BaO2 = mass/ molar…

Q: An aqueous potassium carbonate solution is made by dissolving 6.796.79 moles of K2CO3K2CO3 in…

A: Given, moles of K2CO3 = 6.79 moles Volume of the solution = 3.40 L Molarity of K2CO3 solution = ?

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) PC1₂(g) + Cl₂(g) Ke…

A:

Q: Do we need 405 J of work done on the system so its volume changes from 2.0 L to 6.0 L against a…

A: Work done on the system or by the system can be calculated on considering change in volume of gas.

Q: The preparation of an aqueous solution is described in the table below for this solution, write the…

A: 0.2 mol of HI is added to 1.0 L of a solution that is 0.4 M in both HCH3CO2 and NaCH3CO2 .We have…

Q: The equilibrium constant, Kc, for the following reaction is 77.5 at 600 K. CO(g) + Cl₂(g) =COCI₂(g)…

A:

Q: a small molecule that has been identified using mass spectrometric techniques a large biomolecule…

A:

Q: If a system has 4.50 × 102 kcal of work done to it, and releases 5.00 x 10² kJ of heat into its…

A:

Q: 3. Draw the structure of the DNA oligomer that would perfectly base-pair with the following sequence…

A: DNA has a double stranded structure and both the strands are complementary to each other.  For…

Q: ibility and... 18.3 Gibbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule 19.6…

A:

Q: What type of chemical bonds would an atom with atomic number 3 be able to make? O It would form ions…

A: The ionic bond is an electrostatic attraction force, formed between the ions and it is a strong…

Q: 1: НО CH₂OH ОН ОН Name the glycosidic bonds: CH₂OH ОН ОН ОН 2: 3. What two monosaccharides make up…

A: we have to determine the glyosidic bond in the given structures and write the name of…

Q: For the reaction 2 H₂O(g) = 2 H₂(g) + O₂(g), K-2.4x10³ at a given temperature. At equilibrium in a…

A: For the reaction, the equilibrium constant  K = 2.4 × 10-3  Volume of container = 3.1 L

Q: Provide the correct IUPAC name for N₂Br3. (1) (1) (1) (IV) tri- mono- di- penta- tetra- hexa- octa-…

A: To provide the correct IUPAC name for N2Br3

Q: Which of the following compounds has a stereoisomer that is a meso compound? Check all that apply.…

A: given  compounds  find meso compounds than  first condition for meso compound substituents are in…

Q: Which of the following will determine if an atom/ion is paramagnetic? Select one: O a. Em b. Ema O…

A: If a molecule or atom contain unpaired electron then it is termed as paramagnetic.

Q: How many grams of solute are present in 165 mL of 0.410 M KBr? mass of solute: 0.0

A: Given, volume of solution = 165 mL = 165 mL x ( 1 L / 1000 mL) = 0.165 L concentration of KBr…

Q: What is the correct statement about the reaction? (At 298K, ∆H°f for CF4(g) is –933 kJ) ½…

A:

Q: One mL of saliva was diluted to 5 mL using distilled water.A 2.00 mL aliquot was obtained and added…

A: To calculate : dilution factor.

Q: [Ne] 3s1 Na 11 protons 11 electrons 0 net charge F Empty space 1s2 2s2 2p6 = [Ne] Na (positive ion…

A: Electronic configuration of Ne is 1s22s22p6   Electronic configuration of Na is 1s2 2s2 2p6 3s1…

Q: How many moles of H+ ions are present in 456 mL of 0.943 M nitric acid solution? mol H+

A: Given data :  Concentration of HNO3 = 0.943 M  Volume of HNO3 = 456 mL = 0.456 L  1mL = 10-3 L  1 M…

Q: Which of the following transitions will result in the emission of the HIGHEST energy photon? Select…

A:

Q: Question 7 How many orbitals are there in each of the following subshells? (a) 6d (b) 5p (c) 7f N A…

A:

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for