A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 52.50 mL of 1.500 M NaCl, and the PbCl₂ precipitate is filtered from the solution. Then 200.0 mL of 3.000 M NaBr is added to the remaining solution, and the PbBr₂ precipitate is also collected and dried. What is the mass (in grams) of the PbBr₂ precipitate, assuming the yield in each precipitation step is 100%?

Q: K Problem 37 of 50 HBr equiv) Done

A: Addition of HBr to unsymmetrical alkene is takes place according to Markovnikov's rule. According to…

Q: (2) Me CO₂Et Me

A: Given organic compound is,

Q: Write the systematic name of each organic molecule: O structure CH3-CH-C-OH CH3 CH3…

A: RULES for IUPAC nomenclature;  In first step , we identify functional group present. we make longest…

Q: Draw the Lewis structure created by the curved arrow. Write in formal charges wherever they are not…

A: The Lewis structure of the given molecule is Draw the Lewis structure created by the given curved…

Q: Draw the structure of the major organic product(s) of the reaction. 1. DIBAH, toluene 2. H30 DIBAH…

A: Generally ester is reduced into aldehyde which further reduced into primary alcohol. Selective…

Q: A sample of O2 gas is observed to effuse through a porous barrier in 7.64 minutes. Under the same…

A: Effusion is the process of movement of gaseous molecules through a small hole. The rate of effusion…

Q: What type of orbital overlap is responsible for either of the T-bonds between the carbon and…

A: The nitrile group contains one sigma bond and two pi-bonds.

Q: Draw the Newman projection so that it corresponds to the molecule and conformation shown when viewed…

A: Newman projection is the simplest representation of the three-dimensional structure of organic…

Q: Propose an efficient synthesis for the following transformation: -0 The transformation above can be…

A: To solve this problem we have to complete the given reaction.Here, we will synthesized the final…

Q: Below is the Lewis structure of the carbon dioxide (CO₂) molecule. OBCHO Count the number of bonding…

A: Given,The Lewis structure of CO2 :

Q: o c Br Br₂ (1 mole) heat Give the major organic product(s) for the following reaction. ?

A: Given is organic reaction. This reaction is known as photochemical bromination reaction.In this…

Q: Assuming equal concentrations, arrange these solutions by pH. Highest pH KOH(aq) NH,(aq) Sr(OH)₂…

A: Given:The pH of a solution is determined using the negative logarithm of the hydrogen ion…

Q: Determine the partial pressure of oxygen necessary to form an aqueous solution that is 4.1x10-4…

A: Answer:Henry's law at constant temperature gives the amount of gas can be dissolved in a liquid,…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.438 M acetic acid…

A:

Q: How many moles of potassium hydroxide would have to be added to 150 mL of a 0.469 M hypochlorous…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: what is the pka for Ethanium?

A: pka = - log (ka)ka is  ionisation constant greater The acidity will be value of ka.

Q: Highlight the chirality (or stereogenic) center(s)

A: A chiral centre is the one in which carbon is attached to four different substituents.

Q: A 68 g sample of a compound used as a dry cleaning fluid is found to contain 10.80 g carbon, 1.36 g…

A: A sample of a compound used as a dry cleaning fluid is found to containmass of carbon (C) = 10.80…

Q: Design a buffer that has a pH of 7.20 using one of the weak base/conjugate acid systems shown below.…

A:

Q: How many mL of 6.00 M NaCl are needed to prepare 125 mL of 1.50 M NaCl

A: The initial molarity of NaCl solution is .The final volume of NaCl solution is .The final molarity…

Q: A scientist measures the standard enthalpy change for this reaction to be 296.0 kJ/mol: H₂S(g) + 2…

A:

Q: A mixture of helium and oxygen gas is expanded from a volume of 89.0 L to a volume of 92.0 L, while…

A: Given,Initial volume (Vi) = 89.0 LFinal volume (Vf) = 92.0 LPressure (P) = 37.0 atmWorkdone on the…

Q: H3CO CH3 LOCH 3 o d.d. magen. 0.0⁰0% CH₂Br A CH3OH

A: Given reactant is primary alkyl bromide. Sn2 is bimolecular nucleophilic substitution reaction, This…

Q: What is the pH of a solution in which 8.09 mL of 0.12 M HNO3 is added to 13.27 mL of 0.19 M Ba(OH)2?…

A: Given,Molarity of HNO3 = 0.12 Mvolume of HNO3 = 8.09 mLMolarity of Ba(OH)2 = 0.19 Mvolume of Ba(OH)2…

Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

A: Answer:Here:

Q: Write the equation for the reaction associated with the K₁2 of sulfuric acid, H₂SO4. K₂2: HSOH+ +…

A: Given,The species are:sulfuric acid ( H2SO4 ) :carbonate ion ( CO32- ) :

Q: How many total atoms are in 0.450 g of P2O5?

A: mass of P2O5 = 0.450 gTotal number of atoms = ?Note: molar mass of P2O5 = 141.94 g/mol

Q: CH₂OH c=0 HO-C-H CH₂OH + CuSO4

A: To determine the product of the following reaction:

Q: OH ZI O NaOCI, Nal Etanol

A: Given reaction is,

Q: Q3: Hydrogen peroxide, H₂O2, decomposes in water by a first order kinetic process. A solution of…

A:

Q: In this reaction, 2 Al(OH)3(s) + 3 H2(g) + energy ⟶ 2 Al(s) + 6 H2O(g) ____ and heat is transferred…

A: Exothermic reaction: Exothermic reactions are reaction in which energy is released from the system…

Q: 7. Using hard-soft concepts, indicate (by circling) whether the following reaction will have an…

A:

Q: Arrange the oxides B2O3, Al2O3, BaO, CO2, Cl2O7, SO3 in order from the most acidic through…

A: In the periodic table in periods the electronegativity increased from left to right.In groups the…

Q: im confused because i also initially got this but it says it is incorrect

A: -Select the parent chain with the longest possible continuous carbon chain with a maximum number of…

Q: ter The reaction below has an equilibrium constant Kp = 2.2 x 106 at 298 K. 2 COF2 (g) CO2(g) +…

A: If the equation (having equilibrium constant K) is multiplied by 2, the equilibrium constant for the…

Q: Consider the titration of 100.0 mL of 0.250 M aniline, C6H5NH2, (Kb = 3.8 x 10-11) with 0.500 M HCI…

A:

Q: 3 4-(N-Morpholino)butanesulfonic acid (MOBS) is a weak acid frequently utilized to prepare buffers…

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

Q: When 20.0 g of aqueous solution B(aq) at 22.0°C is added to 60.0 g of aqueous solution A(aq), also…

A: Given that,The mass of the aqueous solution of B is 20.0 g.The mass of the aqueous solution of A is…

Q: Complete the following chart, in order from left to right Ion 40Ca2+ Mass Number Protons Neutrons…

A: Given,             Ion  Mass number    Protons   Neutrons   Electrons            40

Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. CH.CCLI 2. Neutralizing…

A: Organolithium reagents that is R-Li( where R may be any alkyl or aryl group )are organometallic…

Q: In this reaction, D 2Al(OH)3(s) + 3H2(g) + energy 2Al(s) + 6H2O(g) and heat is transferred from the…

A: Exothermic reaction and endothermic reaction:• Exothermic reaction : Exothermic reactions are…

Q: 4. Air undergoes a polytropic expansion (n = 1.4) in a piston cylinder assembly adiabatically. The…

A: The objective of the question is to calculateThe final presssureThe final temperatureThe work doneAn…

Q: H3C N-CH3 боловс (TFAA) H3C CH3

A:

Q: 7. How would you complete the following syntheses? Provide the reagents and products of each step.…

A: As per the rules, only the first three questions can be answered.

Q: Give the IUPAC name for the following compound:

A: In case of cyclic compounds add prefix 'cyclo' before the name of the parent chain.

Q: Balance the following redox reaction in basic solution. 2+ Cr(OH)3(s) + Cu²+ (aq) → Cro (aq) +…

A: Redox Reaction: A redox reaction is one type of chemical reaction in which oxidation and reduction…

Q: Which of the following structures, including formal charges, is correct for diazomethane? H₂CNN:…

A: Given,The Lewis structures:

Q: Which of the following is the best choice of reagent for the following transformation? Br Brz NBS O…

A:

Q: The activation energy, Ea, for a particular reaction is 13.6 kJ/mol. If the rate constant at 754 °C…

A:

Q: Copper(1) ions in aqueous solution react with NH, (aq) according to Cut (aq) + 2NH, (aq) → Cu(NH,);…

A: Solubility is defined as the capacity of solute to dissolve in a specific solvent. The equilibrium…

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.