Isotope name Oxygen-18 Sodium-24 protons 8. 35 55.5 3207 S to 29 neutrons 46 electrons 35 29 26 Fe Nuclear symbol 85 Cu 32.07

Q: In an aqueous solution, classify these compounds as strong acids, weak acids, strong bases, weak…

A: Here given various type of  compounds .

Q: Which of the following additions makes the ideal gas equation more accurate for real gases? Select…

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Q: of 25 Write the equilibrium-constant expression for the reaction shown in terms of [A], [B], [C],…

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Q: 2 moles of ideal oxygen gas are kept at 273 K in a volume of 11.35 dm3 with a molar heat capacity at…

A: Given: number of moles of ideal oxygen gas, n = 2 mol T1 = 273 K  volume, V1 = V2 = 11.35 dm3 heat…

Q: What is E at 25°C for the reaction? Zn(s) I Zn2+ (0.10 M) II Cu²+(1.0 M) I Cu(s) E°cell = +1.100V 1…

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Q: A central atom has two atoms bonded to it and has two lone pairs of electrons. What is the molecular…

A: Given : A central atom has two atoms bonded to it and has two lone pairs of electrons  To determine…

Q: Which of the following compounds can be analyzed using a gas chromatography like the one used in…

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Q: Calculate the pH and the pOH of an aqueous solution that is 0.025 M in HCl(aq) and 0.080 M in…

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Q: For the reaction 4 PH, (g) = 6 H, (g) + P,(g) the equilibrium concentrations were found to be [PH,]…

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Q: What is the smallest-wavelength line (in nm) in the Brackett series (nf = 4)?

A: Brackett Series of lines  are produced when electron excited to high energy level make transitions…

Q: If you dissolve 50 g of NH4Cl at 30 0C, how much NH4Cl will be left undissolved or precipitate out…

A: At 30°C solubility of ammonium chloride is 41.4gm/100gm water.Therefore 8.6 gm of ammonium chloride…

Q: soap molecule? The carbon chain is polar and it attracts grease particles, while the carboxylate…

A: In this question, we have to choose the correct option for soap molecules.

Q: 1. Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth…

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Q: 28. What is the starting material in the reaction below? 1. Mg, El,0 CO,H 2. CO2 3. H,0 A)…

A: (28)  When an alkyl halide or aryl halide is treated with magnesium metal in presence of dry ether,…

Q: ऐजब पेम्ट ल्क की हिराकट मेनव के PTCवेन्ननाकेर्सय् न Pम वनी T0- 5 ১. Pk৭ v৭c वmd नकट वाकक० वतत…

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Q: QUESTION 2 Calculate the osmotic pressure of a solution prepared by dissolving 0.0442 g C9H8O4 (MW…

A: Given, Osmotic pressure (π) = ? mass of C9H8O4 = 0.0442 g molar mass of C9H8O4 = 180 g/mol Volume of…

Q: In which of the following ways are amino acids used by the body apply) O ATP production O To build…

A: Amino acids contain carboxylic acid and an amine functional group on the same carbon atom. Amino…

Q: Which of the following ion is the most appropriate intermediate in the following reaction? Br OH HO…

A: The alkene react with Bromine and water to form bromine substituted alcohol.

Q: エ

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Q: 1. a) Consider the following balanced chemical equation: 2AI(s) + 3C12(g) 2AIC13(s) Determine the…

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Q: B gE C. N H. K. %3D P. R. 5. 4. 7. %2$ MacBook Pro 國2A .06 .08 109.5° Answer Bank H. H. 0=N- 0-H…

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Q: When a solution of 1.00 g of X in 100 cm3 of water was shaken with 10 cm3 of ether, 0.80 g of X was…

A: Formula used w = W KD×VKD×V+ vn  Where KD = distribution coefficient V = Volume of water = 100 cm3 =…

Q: which of these four amino aid& could not rotate ithe plane of plane- folarised light? NCHECHSH)(O0H…

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Q: Name the following organic compound

A: Rule of IUPAC- 1) Longest chain as parent chain. 2) Numbering start from those side where more prior…

Q: Draw the Lewis Structure of Sodium Chloride (NaCl).

A: Detail description is given below

Q: 22. K, = 1.8 x 10s for acetic acid (HC2H3O2) Part 1. What molar ratio of acetic acid to sodium…

A: Part A. Formula of pH of buffer Solution of weak acid and its salt with strong base pH = pKa + log…

Q: A certain half-reaction has a standard reduction potential En=+0.45 V. An engineer proposes using…

A: Given, Ered=0.45 VEcell=1.40 V

Q: The reaction A → C proceeds by a stepwise mechanism: A → B,   overall ΔE = 73 kJ/mol; Ea = 97…

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Q: Given the standard reduction potentials of Sn and Cu: Sn2+ + 2e-  Sn Eo = - 0.14 V 2 Cu2+ + 2e-  2…

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Q: A sealed glass container contains 1.56 moles of He gas and 2.63 moles of Ar gas. If the total…

A: partial pressure of Helium = ?

Q: HN. Bupropion 8) a) An acidic drug has a pka of 3.6. Is this drug likely to be soluble if formulated…

A: An acid functional group will be primarily ionized in a basic environment and remain unionized in an…

Q: An analytical chemist is titrating 118.6 mL of a 0.5800M solution of diethylamine ((C,H,), NH) with…

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Q: At a certain temperature the vapor pressure of pure methanol (CH,OH) is measured to be 0.42 atm.…

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Q: The following two molecules are? H. CH3 H3C Но CH Br CH2OH Br The same molecule Enantiomers…

A: In this question we have to tell the relationship between the molecules.

Q: solubility of Mg(OH)₂

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Q: After determining the mass of KCl needed to make the solution, what are the next steps in preparing…

A: The concentration of a solution is the amount of solute (Here KCl) present in a given quantity of…

Q: Given the following standard molar entropies, calculate AS (in J/) for the reaction: C() + 02 (9)…

A: (22)

Q: H. H. H2 H2 CH3CH2CH2C=CCH2CH2CH3 C3C %3D Octane Pd/C catalyst Lindlar catalyst CH3CH2CH2 CH2CH2CH3…

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Q: A BCC crystal has a density of 10 g cm-3 and the unit cell has an edge length of 100 pm. (NA = 6 x…

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Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

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Q: In chemical kinetics, which of the following species is produced in an earlier step and immediately…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: When a sugar, xylose, is reduced an aldose Oa ketose xylotic acid O xylose cannot be oxidized…

A: Xylose have five carbon hence it's Pentose sugar

Q: Complete the following table, which lists information about the measured acid dissociation constants…

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Q: A chemist dissolves 649. mg of pure barium hydroxide in enough water to make up 90. mL of solution.…

A: Given, mass of barium hydroxide, Ba(OH)2 = 649. mg = 0.649 g Volume of the solution = 90. mL = 0.09…

Q: A certain half-reaction has a standard reduction potential E=+0.45 V. An engineer proposes using…

A: Here we have to determine E°red minimum or any  E°red maximum at cathode of galvanic cell. Given…

Q: 5. A solution is made by mixing 100 mL of 0.150 mol/L CaCl;(o) with 100 ml. of 0.050 mol/L Na,SO.,…

A: First we would Calculate the doncen of Ca2+ and SO42- from given solutions which are required to…

Q: A solution was prepared in the lab from equal volumes of lithium fluoride and zinc chloride. If the…

A: The concentration of lithium fluoride = 4.00 × 10⁻⁴ M The concentration of zinc chloride = 4.50 ×…

Q: A 5.00 L tank at 1.0 °C is filled with 6.54 g of sulfur hexafluoride gas and 15.5 g of boron…

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Q: A product of reduction of an aldehyde is a -----.   Question 31 options:   tertiary alcohol…

A: Which one of the following is correct answer

Q: Use the table below to answer the questions. In your own words, define half-life. b. Which isotope…

A: Since you have asked multiple questions, we will solve the first question for you as per our…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.