What do these four elements have in common? Hydrogen (H) be Oxygen (0) 4e 2e Carbon (C) Na 2e 1e Be Sodium (Na)

Q: A weak acid (pka = 6.3) is dissolved in solution with a final pH = 5.7. At this pH, some of the acid…

A: Given the pKa of the weak acid(HA), pKa = 6.3  pH of the buffer solution, pH = 5.7

Q: Discuss how buffers help prevent drastic swings in pH. Explain in details information.

A: Discuss how buffers help prevent drastic swings in pH. Explain in details information.

Q: Draw a mechanism for the following reaction: OH A reaction scheme. OH OH O -CH3 Draw all missing…

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Q: Which pathogens/diseases activate humoral immunity? Describe the mechanism of this activation.

A: Pathogens  It is a organism which cause disease . They are four type of pathogens Fungi Bacteria…

Q: Name covalent compounds. Name or write the formula for the following covalent compounds. (a) Write…

A: Systematic names are  part of nomenclature of compounds,  a systematic name is  given in a…

Q: what is the equations for dissociation and equilibrium equations of bromic acid, hypoiodous acid and…

A: Strong acid completely dissociate in to water and weak acid partially dissociate in to water.

Q: Calculate the activity of the bromide ion in a solution that is 0.050M KBr, 0.050M NaBr, and 0.050M…

A: Given that Concentration of KBr,NaBr and HBr.  0.050M KBr, 0.050M NaBr, and 0.050M HBr.

Q: Here are sketches of four electron orbitals: A 00 B 8 00 D

A: Solutions- Here are the four electron orbitals.

Q: An organic solvent with a molar mass of 56.45 g/mol have a normal boiling point of 45.0 °C and a…

A: According to the question we have, Mass of liquid is given by = 24.0 g Specific heat capacity of the…

Q: A)I,ii and b)I and ii

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: What is the pH of 100 mL of a 50 mM solution of benzoic acid is added to 70 mL of a 50 mM NaOH…

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Q: CHEMISTRY PROBLEMS Calculate the characteristics of each particle: The most common isotope of oxygen…

A: According to the bartleby guidelines for the multiple questions, I can solve only first one. So i am…

Q: c. The lead(II) oxide was weighed before and after the additions. d. 19 18 17 16 before 9 15 ii.…

A: c. From the balance diagram, it is clear that the mass of Lead(II) oxide that has been added to…

Q: part Ⅱ ※ Incorrect 2심 상 사 N~ correct Not possible 웃어요

A: Let us discuss each structure one by one.

Q: IV. Complete the table by computing for the missing pH, pOH, [H+], and [OH-] 1. 2. 3. 4. 5. [H+]…

A: A question based on equilibrium concept that is to be accomplished.

Q: > Question 10 Carry out the following calculation and give the final answer with the correct number…

A: #10: We have to compute the addition/subtraction of the given numbers and report the final answer…

Q: X-ray radiation falls in the wavelength region of 1.00 × 10-11 to 1.00 × 10-8 meters. What is the…

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Q: 6. What items other than a pen are you required to bring to lab next week?

A: We have to write what items other than a pen are you required to bring to lab?

Q: The reaction 4 HBr(g) + O2(g)  2 H2O(g) + 2 Br2(g) was studied at a certain temperature with the…

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Q: Which of the elements go into complete addition solution (space positions or interstitial) with Ni?

A: Given

Q: An experiment is performed to determine if pennies are made of pure copper. The mass of 11 pennies…

A: The density of any substance is the ratio of the mass of that substance to the volume of that…

Q: When 74.7 g of urea (CH₂N₂O). are dissolved in 900. g of a certain mystery liquid X, the freezing…

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Q: A 20 mM solution of ethanol is diluted 1 in 8. The diluted ethanol solution was used for an…

A: Volume of alcohol dehydrogenase in first experiment, V1 = 20 μL Initial velocity in first…

Q: What is chromophore and pigment? Provide website link of reference

A: Bioinorganic chemistry is branch of chemistry in which we study the chemical reaction in biology.

Q: 밌 BONK :: Explanation 집 > Ci ◇ This is not 상 correct

A: Here we have  to explain  whether the given elctron shifting  arrows are correct or incorrect in the…

Q: A solution was made by dissolving 60.7 g iron (III) nitrate (MM = 240.88 g/mol) into 107 g water (MM…

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Q: 4: Change Happens! n: Identify the chemical property in these chemical reactions. Write your answer…

A: Combustible means reaction is undergoing combustion during chemical change. Flammability means…

Q: Plots A and B show enzyme kinetics data in the absence and presence of inhibitor. Which response…

A: A question based on kinetics of reactions in solution that is to be accomplished.

Q: Describe how you will prepare 100.0mL of 0.100 M NaOH solution

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: A particular brand of beef jerky contains 6.05x10-2% sodium nitrite by mass and is sold in an…

A: Given - Mass % sodium nitrite (NaNO2) =6.05×10-2%             Mass of bag = 8.00 oz

Q: How many significant figures should be reported on a 25 mL buret?

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Q: A doctor orders 0.025 mg/kg body weight of morphine for a patient. If a patient weighs 117 lbs and…

A: Morphine required = 0.025 mg/kg Human body weight = 117 lbs = 53.05 kg Morphine concentration = 5.0…

Q: A saturated straight-chain alcohol has a molecules formula of to H130H. Draw the corresponding…

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Q: A buret delivers water at 25 "C from the 0.05 mL mark down to 20.00 mL. The mass of the water is…

A: Given the volume of water is measured at 25 oC.  At 25 oC, the density of water, d = 0.997044 g/mL…

Q: 11. Hydrogen chloride is a compound. a. Draw a diagram to show how the electrons are arranged in a…

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

Q: Lithium oxide forms in the antifluorite structure. (a) Compute the value of the lattice constant.…

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Q: 1. Give the correct IUPAC names for the following compounds:

A: A question based on nomenclature that is to be accomplished.

Q: Given 0.75 M solutions of acetic acid (pKa = 4.76) and sodium acetate, what is the ratio of…

A: Given: PKa of acid = 4.76 pH of solution = 6.3

Q: Question 1 a) Benzenecarboxylic acid, commonly known as benzoic acid, has a pK, of 4.20. Find the pH…

A: #(b): Molecular formula is C6H7N.  Degree of unsaturation(DU) = C - H2 + N2 + 1= 6 - 72 + 12+1= 4 A…

Q: atoms or ions Ar, S, S 2- Si, Cl, S Br, I, F of decreasing 0,0,0 0,0,0 0.0.0

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Q: How many atoms are contained in 0.98 moles of iron (Fe)?

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Q: OH PBr3 a more Et₂0 Nal NaBH4 EtOH CH₂SO₂CI pyridine Mg THF HO. Et₂O 10 OH H₂SO4 80 °C

A: In the given organic compound conversions, Aldehyde is reduced to primary alcohol with NaBH4 , which…

Q: At 25°C and 1 atm, 0.500 mol/kg solution of NaCl is water has VNaCI = 18.63 cm³/mol and VH2O =…

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Q: b) C4H8Br2 (at least seven)

A: Please find your solution below : Constitutional isomers are the isomers that have same molecular…

Q: Question 15 Plots A and B show enzyme kinetics data in the absence and presence of inhibitor. Which…

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Q: The following arrows are incorrectly drawn and I drawn them correctly please check if it's right and…

A: Electrons are attracted towards more electronegative atom. Shifting of electrons take place from…

Q: 4. A solution of an impure zinc ore contained zinc(II), lead(II) and silver(1) ions. The addition of…

A: We have to find the change that indicates reduction.

Q: Chemistry To make a buffer that is 0.35 M EDTA and 0.1 M NaCl, calculate the amount of EDTA (F.W.…

A: The molarity of EDTA (F.W = 372.2 g/mol) in the buffer = 0.35 M or 0.35 mol/L Molarity of NaCl (F.W…

Q: CROSOTTODICH Calculate average atomic weight. Calculate the atomic weight for bromine. It has two…

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Q: INSOLUBLE CHLORIDE AND THE SOLUBILITY PRODUCT CONSTANT Cation A: Ksp: Cation A: Ksp: Cation A: Ksp:…

A: Generally, most of the metal chloride salts are soluble in water; only the cations of Group I metals…

Group 14 Elements

The following elements come under group 14 of the periodic table.