Which of the following pieces of equipment delivers the most accurate volume of solution. A Buret B Graduated cylinder C Volumetric Pipette 1

Q: چله НО 12 НО ОН Н H₂/Pd-C Br 1. H/CH₂OH 2.TMSOT!/ Et,N: NBS CH₂O 1. Et,SIOT! 2. CHBr /1-BUOK Br 13 O…

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Q: Write an equation to show that hydrocyanic acid, HCN, behaves as an acid in water. + H₂O= + Write a…

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Q: Bromine has two isotopes, Br-79 and Br-81. Their abundances are 49% and 51%, respectively. Chlorine…

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Q: - Given that 500.0 mL of solution, draw a mole concept map and calcu late each of the following: (a)…

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Q: Fill in the information missing from this table. nuclide protons neutrons Z A 0 0 33 75 0 0 12 14 0…

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Q: Supply the correct number (i.e. replace the # with a numeral) to complete the name for the molecule…

A: Note : Give priority to functional group. Then assign the numbering to parent hydrocarbon to get…

Q: An arctic weather balloon is filled with 3.02 L of helium gas inside a prep shed. The temperature…

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Q: Which of the following has the greatest amount of entropy at room temperature? A) one mole of…

A: Entropy is the randomness of particles.  The order of entropy is as :-  Solid > liquid > gas…

Q: 7. Draw the structure of the reactant that produces the molecules shown for each of the following…

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Q: Currently the concentration of CO2 in our atmosphere is about 420 ppm. What is the mole fraction of…

A: one ppm is equal to mole fraction × 10^6   Mole fraction × 106 = ppm Therefore, in 420 ppm mole…

Q: 8) It takes 8 min for the concentration of a reactant in a first-order reaction to drop to 45% at…

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Q: Calculate the pH of a solution of 0.34 M HF solution. The Ka for HF is 7.2 x 10-4. pH =

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Q: Calculate the [H*] and [OH] of a solution at 25°C, if pH = 7.85. (answer in scientific notation)…

A: Given :- pH of solution = 7.85  To calculate : [H+] and [OH-] at 25°C

Q: How much heat must be removed from 1.00 g of liquid water at 100.oC to form ice at 0.0oC?   Data:…

A: This is an example of thermodynamic phase transition of of water. This phase transition is taking…

Q: What is the potential of a cell made up of Zn/Zn²+ and Cu / Cu²+ half-cells at 25°C if [Zn²+] = 0.11…

A: Given data :

Q: QUESTION 6 For the reaction below, determine the stoichiometric coefficient on water in the balanced…

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Q: Direction: Answer the following questions accordingly. 1. Hydrogen gas and iodine react to form…

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Q: how many orbitals have the values n=4 l=2 and ml=-2

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Q: 1 Using these metal ion/metal standard reduction potentials: Cd2+ (aq)|Cd(s): -0.38 V: Zn2+…

A: Given, Cu2+(aq) + Cd(s) ➝ Cd2+(aq) + Cu(s) Standard cell potential (E°cell) = ? Standard reduction…

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

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Q: What is the binding energy of an 16S nucleus? Mass spectrometric measurements reveal that the mass…

A: Answer: 309.0 MeV

Q: For the following redox reaction, write a balanced equation for the whole reaction and include the…

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Q: 4. Identify the most acidic and the least acidic hydrogens in each of the following compounds: I IE…

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Q: Which is the equilibrium constant expression for the following reaction? Fe₂O3(s) + 3CO(g) = 2Fe(s)…

A: Equilibrium constant is the ratio between concentration of products and the concentration of…

Q: Complete the following esterification reactions: i Br H₂C ONB DMF CH₂CH₂ONa CH₂CH₂OH

A: Detail mechanistic pathway is given below to find out the product

Q: Consider the following reaction at 298K. Hg2+ (aq) + Zn(s)→→→→→→ Hg({) + Zn²+ (aq) The standard…

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Q: Consider the reaction N₂(g) + 20₂(g)2NO₂(g) Use the standard thermodynamic data i the tables linked…

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Q: 3. The rates of chemical reactions are usually reported with units of mol or L-time molarity/time.…

A: All the necessary calculations have been done in the following step.

Q: True or False, formation of the major product has a lower activation energy in the rate determining…

A: Note : More stable intermediate is having low activation energy. A kinetic product is formed at low…

Q: How many different carbocations will form from an SN1 ionization mechanism on the molecule below.…

A: In this question we have to tell how many different carbocation will form for the given molecule.

Q: QUESTION 2 2. Calculate Go rxn 2 H₂(g) + O2(g) -> 2 H₂O(g) AH, (kJ) ΔΗ • -241.8 So (J/K) 130.6 205.0…

A: Given reaction: 2 H2(g) + O2(g) → 2 H2O(g) We have to calculate the value of ∆G∘rxn for this…

Q: Draw the structure of the tripeptide and determine its name using three-letter abbreviations.…

A: We have to predict the structure and three letter code name.

Q: Select the meta-substituted dibromobenzene Br Br Br Br Br & & & & Br Br Br A B C D

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Q: 1. A suture is made of polylactide, after 30 wee percentage of the original mass remaining?

A: Poly-L-lactide (PLLA) is one of the most significant members of a group of polymers regarded as…

Q: What is the percentage of total acid expressed as acetic acid (CH3COOH) in a sample of vinegar if…

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Q: Calculate the Ka. Use stoichiometry to find the missing concentrations. (answer is K₂ = 1.84 x 10-6)…

A: Equilibrium constant is the ratio of product of concentration of products raised to their…

Q: Which statement is true if an aquous solution is not neutral at 25°C. ? Explain your reasoning in a…

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Q: If 45 mL of a 6.5 M HNO3 solution is added to 55 mL of water, what is the new concentration?

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Q: how long from the original starting time would it have taken to achieve a tempreture of 55 C with…

A: Given: Mass of resistor = 5 g Mass Calorimeter = 22.1 g Mass of calorimeter + water = 116.5  Mass of…

Q: Devise a synthesis for the following compounds from benzene, any alcohol with four or fewer carbos,…

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Q: 1. NaOH 2. Hg(OAc)2, H₂O 3. NaBH4 1. NaOH 2. BH3-THF 3. H2O2, NaOH 1. NaOtBu 2. Hg(OAc)2, H2₂O 3.…

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Q: What type of redox reaction is the following? 103¯¯+51 +6H*→3 12 + 3 H₂O Comprportiontion Not a…

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Q: A 40.00 g sample of a hydrocarbon compound is analyzed by combustion analysis. The experiment…

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Q: What is the correct IUPAC name for the compound shown here? H H * CH3 CH₂ — CH-CH3 CH3…

A: In this question we have to tell the IUPAC name of the compound.

Q: Formula Structure C₂H₁N₁ 5. Does your structure have the ability to form a (circle): hemiacetal or…

A: amino acids usually have both a positive charge on the amine group and a negative charge on the acid…

Q: (c) Design syntheses of (i) cis and (ii) trans isomers of [PtCl₂(CN)(NH3)], using K₂PtCl4, KCN and…

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Q: 7:12 Question 15 of 50 Submit For the decomposition of mercury(II) oxide, HgO, to mercury and…

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Q: BONUS: Select all answers that correctly indicate the larger element or ion in the group. The format…

A: The given are isoelectronic  species having same number of electrons.

Q: For the reaction 2 SO2(g) + O2(g) → 2 SO3(g), the standard enthalpy of reaction ARH° is -197.8 kJ,…

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Q: Calculate the [OH-] of a solution at 25°C, if [H*] = 6.3 x 10-9 M. (answer in scientific notation)…

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