ew Walue Unit A Review 65 2 Complete the following written-response questions in the spaces provided. 1. Complete the following concise Bohr diagram, and name the element. Element: ent Booklet 12p 12n

Q: Iodine-123 is used for imaging the thyroid gland and decays at a rate of 0.0522 hr-1. If 40 mg of…

A:

Q: Ethanol, C₂H6 O, is most often blended with gasoline - usually as a 10 percent mix - to create a…

A:

Q: A student determined that his/her sample was 45.25% Cl-. If his/her original unknown sample weighed…

A: Mass(%) = (Mass of sample)*100/(Total Mass)

Q: Calculate the Standard Electrode Potential for this chemical reaction below. Zn + Cuq) → Znaq) +…

A: Recall the given redox reaction,                                Zn s  +  Cu2+ aq  →  Zn2+ aq  +…

Q: Suppose you were researching a drug, A, whose kinetics were unknown, and were undertaking in vitro…

A:

Q: Suppose you burned 0.300 g of C(s) in an excess of O₂ (g) in a constant-volume calorimeter to give…

A: we have to calculate ∆U per mole of carbon

Q: At what carbon atom of this compounds will occur to produce aldonic acid? 'СНО но- H- OH НО Н CH₂OH

A:

Q: 1. Oxygen gas will produced via a decomposition reaction of a certain substance.    a. Name the…

A: Decomposition reaction: Decomposition reaction occurs when large or complex compound break down into…

Q: Calculate the number of mmoles of the excess reactant remaining in solution when mixing 125.6 mL of…

A:

Q: Water can be decomposed to its elements, H₂ and O2, using electrical energy or in a series of…

A:

Q: The freezing point of ethanol  is -117.30 °C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Given :  Mass of ethanol = 226.0 gm  Molar mass of testosterone= 288.4 g/mol  Depression in freezing…

Q: Why is it normal to add a slight excess of silver nitrate solution when precipitating chloride ion?

A:

Q: Problem 14. Briefly describe the IR spectra of crude cellulose and MCC. MCC is used as a texturizer,…

A: Crude cellulose- It is the unrefined or not yet processed cellulose. Therefore it may contain other…

Q: You have extracted a new compound with a molar mass of 270 g/mol. A 10 mg/L of this substance in a…

A: We can solve Given problem by using beer-lambert law  A= E×l×C Where  A = absorption E = molar…

Q: Qeven following potyhehtile chain is cleaved by bry sin trypsin. write the sequence of the Product…

A:

Q: 15. Consider the substitution reaction: The product(s) of the reaction is(are): a. R enantiomer C.…

A: Hence option (c) is correct answer..

Q: Sulfur does not dissolve in water, but it does dissolve in carbon disulfide; potassium nitrate does…

A: To ensure that potassium nitrate is included in the filtrate, the gun powder combination is first…

Q: Hypochlorous  acid,HCIO, has a pKa of 7.54. What are [H3O+], pH, [CIO-], [HCIO], and pOH in 0.115M…

A:

Q: Draw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form…

A:

Q: A 100mL sample of 0.20M HF is titrated with 0.10M KOH. What is the pH of the solution after the…

A: HF is a weak monoprotic acid with Ka = 3.5*10-4  KOH is a strong monoacidic base.

Q: 4) Two notable physical properties of oxygen are its low solubility in water and a density greater…

A: We have find out the answer.

Q: 5. An unknown weak acid with a concentration of 0.095 M has a pH of 1.82. What is the K, of the weak

A:

Q: . Iodine, 12, is a blue-black solid, but it easily vaporizes to give a violet vapor. At high…

A: chemical reaction is  I2 →2I occurs at high temperature

Q: HCl(aq) is diluted with sufficient water to yield 250.0 mL, what is the molar concentration of the…

A: The correct option is  D) 0.484 M

Q: C What is the new value of A, Hᵒ for Reaction 1, as now written? Original: New: ΔΗ 4 B(s) + 3 O₂(g)…

A: Recall the given reaction,                        4 B s  +  3 O2 g  →  2 B2O3 s               ∆rH°…

Q: The energy required to melt 1.00 g of ice at 0 °C is 333 J. If one ice cube has a mass of 64.5 g and…

A:

Q: Owen belove Some Structure of Retone Select the which Comnot be made by the acid Catalyzed hydration…

A: Here we have to understand the acid catalyzed hydration of alkyne and select which ketones can be…

Q: Ethanol, C₂H5OH, boils at 78.29 °C. How much energy, in joules, is required to raise the temperature…

A: Given, Note: 1 kg = 1000 g mass of ethanol = 3.00 kg = 3000 g Initial temperature (Ti) = 43.0 °C…

Q: An analyst was titrating a solution of unknown acetic acid concentration with 0.01 M NaOH using…

A: pH range of phenolphthalein indicator is 8.3 to 10 i.e below pH 8.3 it is colourless and above pH 10…

Q: The specific heat capacity of ethanol (C₂H5OH) is 2.44 J/g. K. What is its molar heat capacity (in…

A: Here we are required to find the molar heat capacity of ethanol

Q: Barium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the…

A:

Q: What are the molecular processes that occur when (a) infrared, (b) x-ray, and (c) ultraviolet…

A:

Q: The structure shown below is that of one of the geometric isomers (the E- isomer) of the…

A: In the given question a molecule is given and it is asked that why this is assigned as E-isomer.…

Q: What mass, in grams, of NaCl needs to be added to 1.7 kg of water in order to create a solution with…

A:

Q: What is the molarity of a solution made by dissolving 39.264 g of CoCl2 in water and diluting with…

A:

Q: Н Н Which compound below fits the following proton NMR data? O-CH3 CH3 A singlet S 3.98 (3H) quartet…

A: The compound (from the given) fits the proton NMR data = ?

Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

A: Recall the given reaction,                            Mg s  +  2 H2O l  →  MgOH2 s  +  H2 g45 mL…

Q: CO₂ (g) CO₂ (aq) AƒH°(CO₂(g)) = −393.51kJ · mol-¹ S°(CO₂(g)) = 213.785J · mol−¹ . K−¹1 AfH°(CO₂(aq))…

A: First, we have to find standard Gibb's free energy, ∆Go value from the below equation: ∆Go = ∆Ho -…

Q: At -5.95 °C the pressure equilibrium constant K, -5.4 × 10³ for a certain reaction. Here are some…

A: Given :  Initial temperature (T1) = -5.95 °C  Initial value of Kp = 5.4 x 105  Heat at constant…

Q: Predict the splitting pattern for each signal in the ¹H-NMR spectrum for the following molecule…

A: we have to determine the splitting of the marked hydrogens in 1-HNMR spectrum

Q: 20.) Provide the structure of products A: B in the faraming reaction requinu. 0 FOCHS A MCPBA

A: In the given problem the first reaction is Diels-Alder reaction and second reaction is epoxidation…

Q: Between A and B which is more water soluble ?

A: Given : structure of molecules Solubility is directly proportional to hydrogen bonding, molecular…

Q: A 237-g piece of iron, initially at 100.0 °C, is dropped into 244 g of water at 10.0 °C. When the…

A: The amount of heat required to increase the 1oC temperature of 1 g metal is known as the specific…

Q: Many monomers can form long polymer chains, but some can also form bonds with neighbouring polymer…

A:

Q: An automobile engine provides 510 Joules of work to push the pistons and generates 2202 Joules of…

A:

Q: What is the value for the number of nodes of rank r? a) N b) N/2 c) N/2r d) Nr

A: Each node of rank r is the root of at least 2r subtrees.

Q: Blank 1: which is product X. Type a letter (A-F) in the blank Blank 2: What is product Y? type a…

A:

Q: How would these chemicals react with (CH2=CH)2CuLi?

A:

Q: Question 12 of 23 Which of the following bonds is the most polar? A) P-S B) C-CI C) F-F D) Rb-Br E)…

A: Relationship between polarity and electronegativity difference (∆EN): Polarity of bond of the…

Q: E Fe Pt/Fe³+ (0.1600 M), Fe2+(0.0700 M) // Hg2+ (0.0350 M)/Hg EHg2+ = +0.854 V O +0.020 V…

A: