List two (2) chemical grade and its purity

Q: Complete its Octet. HH TI H-C-C-0- H-C-C-H H HA H B H H H C-H H-C-0-C-H ннс Н HD Which of these…

A: Compound A could function as both a hydrogen bond donor and acceptor.

Q: You need to prepare a solution that is buffered at pH=9. If you were to look for a suitable buffer,…

A: Our target pH is 9. The best buffer solution to be selected for a desired pH has the below…

Q: Enter electrons as e The following skeletal oxidation-reduction reaction occurs under basic…

A: In case of acidic medium, to balance oxygen we use H+ and H2O. In case of basic medium, to balance…

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

A: Step 1 : Grignard addition to aldehyde FG. Step 2 : OH is converted into OTs (good leaving group)…

Q: 14) Which of the following reactions will not yield a ketone product? A) 1. Sia2BH/THF 2. H₂O₂/OH-…

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Q: Which one of these materials is a copolymer? Multiple Choice O Styrene-butadiene poly-cis-isoprene…

A: Copolymer and homopolymer

Q: 2. Why are aldehydes and ketones relatively weaker than alcohol in the context of hydrogen bond…

A: Since you asked multiple  image questions so as per Q&A guidelines of portal I solved first…

Q: Which of the following best indicates a pure sample when taking a melting point? Choose one answer…

A: Melting point Apparatus are used to determine the range of melting point of solid substances…

Q: A solution is prepared by adding 0.13 mole of Ni(NH3), Cl₂ to 0.50 L of 3.6 M NH3. Calculate [Ni…

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Q: An unknown gas effuses at a rate of 2.00 times the rate of Cl₂. What is the molar mass of the…

A: Given-> Effusion rate of unknown gas = 2× effusion rate of Cl2

Q: 5) pH Calculations of Polyprotic Systems a. What is the pH of 0.1000 M H3PO4? (Ka1 = 6.9x10-³)

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Q: Chernobyl expelled lots of Cs-137 radioisotopes in the environment in 1986.  The half-life of Cs-137…

A: We have to calculate the radioactivity after 60 years.

Q: Question 9 of 11 As the temperature decreases, what can be said about a sample of gas particles? A)…

A: Generally temperature is the measure of the average kinetic energy of all the molecules present in…

Q: For a reaction where ∆H° = +573 kJ/mol and ∆S° = +1.64 kJ/mol･K, at what temperature, in K, does…

A: For a reaction to be spontaneous the value of ∆G° must be negative.

Q: Please answer the questions with solutions

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Q: Based on the data provided, what is the rate constant (with units) for this reaction? Trial [C6H13X]…

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Q: The only true hydrocarbon polymer found in nature is Multiple Choice O polystyrene. neoprene.…

A: Multiple choice question given here.

Q: A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M…

A: The reduction potential of two elements are    Since the reduction potential of Titanium is less…

Q: What is the major product of the following reaction? NaCl, H₂O A. B. C. D. E. Nal + H₂O + ??????

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Q: Choose which of the given equations is a oxidation-reduction (redox) disproportionation reaction. 3…

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Q: 3 moles of He and 1 moles of Ar are present in a window sign that has a total pressure of 1,222 mm…

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Q: Acetylene is manufacture by hydrogenation of C (graphite): 2 C (s) + H₂ (g) → C₂H₂ (9) How much kg…

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Q: and assuming concrete is 100% by volume CaO, how much CO2 was released producing the concrete used…

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Q: nsider the phase diagram of kryptonite shown below. P (atm) 1- 10 20 30 40 50 60 70 T (deg. Celsius)…

A: The solid-liquid curve in the given phase diagram is positive.

Q: Draw the major organic product for the reaction shown. Do not draw counterions or byproducts. Draw…

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Q: Draw the structure of the compound whose spectroscopy data is provided. C6H12O 2.6 ppm, 1H, sextet…

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Q: What volume (in mL) of 15.921 ppt K+ (39.0983), with a density of 1.01 is needed to provide 8.31…

A: To calculate the volume that is needed to provide the desired amount of potassium ion.

Q: The solution contains the following cations: Nat 145 mEq/L, and K+ 143 mEq/L. If phosphate ion is…

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Q: We are determining the rate law equation for a reaction A + B + C → ABC in which a dramatic and…

A: The explanation is given below-

Q: In the early morning when the temperature was 13.9 °C, a motorist measured her tyre pressure at 185.…

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Q: The following are equations that you might need to solve problem a-d: Kw = KaKь 14 = pka + pkb Kw =…

A: Given,  Molarity of HCl = 0.100 M Volume of HCl = 25.0 mL Molarity of NaOH = 0.250 M The pH of the…

Q: The most suitable method of separation of 1:1 mixture of ortho and para-nitrophenols is (a)…

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Q: An NaCl crystal may be best described as which type of crystal? A)  ionic   b)  covalent  c)…

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Q: Which is incorrect?

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Q: C. Identify if the compound is ionic (1) or molecular (M). Then write the chemical formula of the…

A: When the compound is formed by only non metals, then it is called covalent/ molecular compound.…

Q: 5) pH Calculations of Polyprotic Systems b. What is the pH of 0.1000 M NaH₂PO4? (Ka1 = 6.9x10-3,…

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Q: Consider the following balanced equation for the reaction of aluminum with sulfuric acid: 2Al(s) +…

A: Given balanced reaction is :  2Al (s) + 3H2SO4 (aq) → Al2(SO4)3 (aq) + 3H2 (g)  Number of moles of…

Q: The pressure in a flask containing 15.0 g Ar and 15.0 g Ne is measured and found to be 796 mm Hg at…

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Q: For nitrous acid, HNO2, Ka = 4.0 × 10–4. Calculate the pH of 0.33 M HNO2.     A)  2.92   B)…

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Q: When the following equation is balanced properly under adidic conditions, what are the coefficients…

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Q: Consider the following reaction at 298 K. Co²+ (aq) + 2Ag(s) → Co(s) + 2Ag+ (aq) Which of the…

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Q: مهله Benzil NH₂ NH₂ NaOH/ethanol -NH NH 5,5-diphenylhydantoin (Dilantin)

A: Step 1 : Benzilic acid rearrangement but here nucleophile is NH-. Then followed by intramolecular…

Q: Water boils at a much higher temperature than would be expected for such a small molecule. This is…

A: H2O has high boiling point because of amount of intermolecular forces present .water experience…

Q: Draw the major nitrogen-containing organic product(s) of the reaction shown. O O H₂NCHCNHCHCOCH3 1.…

A: Note : ester hydrolysis is done by NaOH. Above peptide molecule is having ester group. This ester…

Q: What is the product of the following reaction? NaClO₂, H₂N-S-OH N--OH &-+| H₂O/THF b. d. НО. ze ze…

A: 1. Conversion of aldehydes to acids is achieved using NaClO2, H+. 2. Aldehyde reacts with p-methyl…

Q: Tc-99m is commonly used in nuclear medicine.  It has a half-life of 6 hours.  The radioactivity dose…

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Q: 11. Give the oxidation number of each element in the following complex salt. [Cr (NH3)5 Br] SO4…

A: Given :- formula of complex salt = [Cr(NH3)5Br] SO4  To determine :- oxidation no.of each element in…

Q: For the boxes on top of the arrow, fill in the reagent(s) and solvent(s). Tf-0 1. D 2. HO.

A: Note : Heck coupling followed by methyl deprotection. ( see below).

Q: KBr AgNO3 Ej: KBr + AgNO3 →→KNO3 AgBr Na2CO3 Cas NHẠCH

A: First we would write products by double displacement reaction . Then using solubility rules, we…

Q: Status: Not yet answers Suppose you are working with a NaOH stock solution but you need a solution…

A: Given :-  Initial concentration = 1.425 M  Final concentration = 0.1488 M  Final volume = 250.0 mL…