If we begin with 5.00 mg of iodine-131 (t1/2 = 8.07 hr), how much remains after eight half-life periods? i 0.3125 mg

Q: For the [PtCl2(Br)2] molecule,   i) Show the electron filling on the s, p and d-orbitals of a free…

A: For the complex [PtCl2(Br)2]-2  We have to determine geometry , hybridization and electronic…

Q: The literature Ksp value for Mg(OH)2 is 1.8×10-11. (a) Calculate the theoretical [OH¯] in a…

A: a.) First we would write dissociation equation of Mg(OH)2 and use Ksp value to calculate…

Q: Ka for HCN is 6.2 x 10-10. Calculate the % ionization and the concentration of all species in a…

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Q: a) Draw the most stable chair conformation of: cis 1,3-dichlorocyclohexane

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Q: Determine ∆G° for a reaction when ∆G = -188.0 kJ/mol and Q = 0.035 at 223 K. (R = 8.314 J/mol ･ K)

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Q: Calculate the value of work, w, 1

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Q: 2. Provide detailed 3p- mechani sm to fill in the Boxes bith appropriate compounds. oki Br. warm SNI…

A: In this question, we will write all missing intermediates and product in the Boxes with a details…

Q: Rank

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Q: When a AH>0 and TAS<0 the reaction will be: а. spontaneous O b. system is an equilibrium С. not…

A: The reaction will be not spontaneous if  Delta G &gt; 0  And in this question we have to tell that…

Q: Name: Date: Equilibrium Expression Calculations Assignment 1. At equilibrium a flask was found to…

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Q: A vernier caliper was used for taking the diameter of a sphere of unknown material. The radius…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Write "least' under the least acidic hydrogens (A, B, or C). b) Write "most" under the most acidic…

A: #(a): We are given acid derivatives in the options.  The reactivity of acid derivatives depends on…

Q: Calculate the force of attraction between a cation with a valence of +3 and an anion with a valence…

A: Given: charge on cation = +3 charge on anion = -2 distance between them = 2.2 nm = 2.2 x 10-9m To…

Q: Specific Heat (J/g°C) Metal Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In joules, how much…

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Q: Question I1 For the reaction at 25°C:cdC"|F"|Fe Determine E° Deter mine AG° De termine K

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Q: The complex (Cu(NH,,"absrb bght with wAnlength of 342 nm .What is the valus ANin K3 mole?

A: Given,  The complex [Cu(NH3)4] absorbs light with a wavelength of 342 nm

Q: 125.0 g of chlorine gas (Cl,) and 29.0 g of helium (He) are mixed in a container with a total…

A: Mass of Cl2 = 125 g  Mass of He = 29 g  Total pressure of the container = 1688mm Hg     To determine…

Q: 10. Which of the following structures is not a good chromophore? a. O'Na" so, Na* b. C. d. e. All of…

A: Concept:  Chromopher: A chromophore is the section of a molecule that causes us to see color. The…

Q: A 3.50 L sample of a gas at a pressure of 1.75 atm is compressed to 2.00 L at a constant…

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Q: For 6 and 7, use the table of K, values compiled at 25 °C to answer the questions below: cid HNO,…

A: Acid can be defined as the species that donate hydrogen ions in aqueous solution and base is a…

Q: A valence electron is Select ane Othe electron that is in the highest energy level of the atom O any…

A: 1. Electron are negatively charged . 2. Valency electron alwayes takepart in chemical reactions.

Q: Uranium-238 undergoes eight consecutive a-emissions to give stable lead. In an uranium ore sample,…

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Q: Question 11 How many fluoride atoms are in the formula unit for capper(Il) fluoride?

A: Given molecules copper(II) fluoride . The chemical formula for copper(II) fluoride is CuF2

Q: Question I1 For the reaction at a5 c:caC"F"|Fe Determine E° De ter mine AG° De termine K

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Q: 1.1 equivalent of NaNH, „Br 2. 3. H2 / Lindlar catalyst 4. Br2

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Q: A 3.0 g sample of a small protein having a molecular weight of 42,000 g/mol is dissolved in 52.8 mL…

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Q: Your body is: O a. an open system Ob. a closed system an isolated system

A: Open system allow transfer of mass and energy both from system to its surrounding. Closed system…

Q: 1. Name the following molecules: a) CH b) CCCH(CH,)CH, H,CHO CH CH CH- -CH 2. Draw the following…

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Q: Which of the following is a Lewis acid? A) Fe3* B) CN C) NH3 D) SCN

A: In this question we have to tell that which is act as lewis acid.

Q: calculate the voleme in Hitres of a 296 9/2 Contains 213 g of zine nitrate zinc nitrate sotution…

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Q: correctly. Please help me answer all of them. I would appreciate it, this is my last chance, please

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Q: Which of the following compounds would be more soluble in water? A CH3CH2-N-CH2CH3 CH3-N-CH3 CH2CH3…

A: Amines can form hydrogen bond with the water molecule so their solubility is affected by the…

Q: E Learning Task 2: An alloy is prepared by mixing 60g copper and 70g zinc. Find the percentage by…

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Q: Hydrogen peroxide decomposes by the following reaction.  The reaction is rapid with the addition of…

A: Entropy is degree of randomness or disorderness.  If the number of Gaseous moles increases then…

Q: Chemistry Based on the structure shown, what kind of interactions do you expect between HM and the…

A: Cu2+  - chelation  metal bind with two donar site.  Hydronium ion - Protonation Glycerol and glucose…

Q: Provide the mechamism for the given reaction.

A: In this question, we will draw the mechanism from the right side ( starting material ) to the left…

Q: 54. In the octahedral complex Co(NH2CH2CO2)3, each glycinate ion NH2CH2CO2¯ binds to cobalt through…

A: This question is related to stereochemistry. Stereoisomers are the molecules having the same…

Q: Ferrox Test Reagent: FeNH4(SO4)2 (Crystal of ferric ammonium sulfate) + KSCN (Crystal of potassium…

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Q: What is the pH when 1 mole of HCl is added to 1 mole of Na3AsO4 (arsenic acid) in a 1 liter volume?…

A: Na3AsO4 is sodium salt of arsenic acid. So when HCl is added to it , they will react to give…

Q: Show the steps necessary to convert benzene into p-chlorobenzonitrilie, using a diazonium salt at…

A: It is an example of  electrophilic aromatic substitution

Q: 30) The value of Keg for the equilibrium CO2 (g) + 2H2 (g) 3OH (g) is 14.5 at 483 °C. What is the…

A: Reaction's keq depends on multiplication factor .  If reaction is multiplied by some number then…

Q: to convert a measurement. (The  ?  stands for a number the student is going to calculate.) Fill…

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Q: Nitrogen and hydrogen react to form ammonia according to the reaction shown. 3 H2 (g) + N2 = 2 NH3…

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Q: What is the purpose of Chromic acid test? a. What are the reagents used? b. Write oxidation…

A: The Jones reactant is used to oxidise aldehydes and alcohols while reducing chromic acid, producing…

Q: Apollo 13 Lunar Mission You are a NASA engineer. You are the chief engineer for the Apollo 13…

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Q: 11. Write out the steps necessary to make (cis) 2-hexene starting with propyne.

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Q: MISSED THIS? Watch KCV 19.6; Read Section 19.6. You can click on the Review link to access the…

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Q: What is the molarity of a solution that contains 2.0 moles and Nacl in 500 ml

A: • The values provided in the question are:-       i) Number of moles of NaCl (solute), n = 2.0 mol…

Q: Consider the apparatus below with the valve closed. The temperature is held constant.When the valve…

A: Entropy is a measure of randomness . If particles move more randomly then entropy of particles would…

Q: what is the hybridization of the Xe atom in XeF4   (with an explanation using the bumber of rlectron…

A: Hybridization can be calculated using number of electrons domain that is bond pair and lone pair .…