Q: What is the pH of a 0.0300 M solution of NaNO2? (K, for HNO2 = 4.00 x 104) %3D O 7.00 O 7.94 8.81…
A:
Q: why HCHO behaves both as oxidising and reducing agent?
A: In formaldehyde the oxidation state of carbon is 0.
Q: Write chemical equations for each of the following chemical and physical processes: (d) Dissolving…
A: As per our guidelines you have posted multiple questions I can answer only first three parts .
Q: What is the pKa of HC4H4O6 ? 2.17 10.26 O 6.59 8.15 4.34
A: generally pka gives the acidic nature of the molecule lower the pka more will be the acidic nature…
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A: We can form chemical formula of a compound by criss-crossing the valencies of ion.
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A: Gas concentration = 0.25 % Lets total pressure = 1 atm As percent of concentration is similar in…
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A: Please find your solution below : Baking powder is a mixture of sodium bicarbonate (NaHCO3), other…
Q: How do the acidities of aqueous solutions of Tl₂O and Tl₂O₃ compare with each other? Explain.
A: Concept introduction: Acidic substance are those substance which has pH is lower than 7. Basic…
Q: 4. Give two aspects that need to be fulfilled when you look at the structure of a dye made by diazo…
A: The use of diazo compounds as dye pigment are known since several decades.The structural aspects of…
Q: why PCL5 act as an effective chlorinating agent?
A: The given compound is PCl5.The chemical name of PCl5 is phosphorus pentachloride. The shape of PCl5…
Q: 7. What does the acronym VSEPR mean?
A: VSEPR = Valence Shell Electron Pair Repulsion theory
Q: Which of the following could most likely serve as an ionophore? II II IV
A:
Q: Calculate the pH of an aqueous solution prepared by dissolving 5.61 g of KOH pellets in water and…
A: Mass of KOH = 5.61 g Volume = 0.500 L Molar mass of KOH = 39.10 + 16.00 + 1.008 = 56.108 g/mol pH of…
Q: Provide two aspects that need to be fulfilled when you look at the structure of a dye made by diazo…
A:
Q: Chemical formula of Pb2+ and CO32-
A: Chemical formula of a compound can be formed by criss-crossing the valencies of ions.
Q: Write the equation for the reaction of Pb2 with CrO42-.
A: The reaction between Pb+2 and CrO4-2 is a precipitation reaction.
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A: Bond dissociation energy: The energy required to break the chemical bond in a molecule is called…
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A: The reaction in which the number of elements on both reactant as well as product side is equal is…
Q: What is the chemical name of AsBr5?
A: The given compound is AsBr5.
Q: An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The…
A: An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic so we…
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A: Calcium oxide reacts with water to form calcium hydroxide. This reaction is highly exothermic in…
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Q: Write the overall balanced reaction equation to oxidize sodium cyanide using ozone (O3)
A: The objective of the question is to write the overall balanced equation.
Q: 10. The oxides of Group 15 react with water to give acids. Which of the following chemical equation…
A:
Q: Predict whether He2+ exists.
A: Existence of any molecule can be checked by calculating its bond order. If bond order = 0, then…
Q: Maalox and Mylanta are both antacids that contain aluminum hydroxide as their active ingredient.…
A: In a chemical reaction, when number of atoms of each element present in reactants are equal to…
Q: What is the stoichiometric ratio between Cu2+ and Na2S2O3
A: In the reaction between Na2S2O3 and Cu2+ in a solution, copper thiosulfate CuS2O3 is expected to be…
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A: Anticancer platinum compound: * Platinum exists primarily in either a 2+ or 4+ oxidation state.…
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: which cation in KAlSi308 could Sr^2+ substitute for? In order for this substitution to occur, what…
A: Given : We have to tell what will happen when KAlSi3O8 reacts with Sr2+ .
Q: Can HCl be used in the place of sulfuric acid to synthesize Alum? Why or why not?
A:
Q: Determine the pH of a 10-3 mol/L solution of (a) hydrogen sulfate ion (pKa = 1.99), (b) formic acid…
A:
Q: Why does NH3 forms intermolecular hydrogen bonds whereas PH3 doesnot?
A: Hydrogen bonding is a kind of intermolecular force where the H attached to an electronegative…
Q: Give two aspects that need to be fulfilled when you look at the structure of a dye made by diazo…
A: Azo dyes are a commercially important family of azo compounds, i.e. compounds containing the linkage…
Q: Complete and balance the following equations: Na2O21s2 + H2O1l2 ¡
A: The given chemical reaction is, Na2O2s+H2Ol→
Q: Write equations showing the reactions by which atmospheric carbon monoxide is oxidized to carbon…
A: Atmospheric gases easily oxidises by the presence of abundant O2 or O3. CO is produced from the…
Q: How many valence electrons do you have to account for when drawing the Lewis dot structure of PCl5?
A: Valence electron of phosphorus is five and valence electrons of chlorine is seven.
Q: MCQ 109: In nature, Magnesium Oxide (MgO) is A. acidic B. alkaline C. catalyst D. neutral
A: Magnesium is an element placed in group 2 of the periodic table. It is a metal and on combining with…
Q: Phosphate buffered saline (PBS) is a very common reagent in cell biology labs that do cell culture…
A: The components of 10X PBS are 10.5 mM KH2PO4, 1.552 M NaCl and 29.7mM Na2HPO4. Volume of 10X PBS…
Q: Complete and balance the following equations: N2O31g2 + H2O1l2 ¡
A: In chemistry, a chemical reaction contains two major parts- Reactants ( substrate ) and Products.…
Q: Complete and balance the following equations, and identify the oxidizing and reducing agents:…
A: The complete balanced equation has to be given,
Q: Write the chemical equations that describe the following procedures: (a) Preparation of acetic acid…
A:
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- Both H2PO3−H2PO3− and HS−HS− are amphoteric. Write an equation to show how H2PO3−H2PO3− can act as a base with HS−HS− acting as an acid. Express your answer as a chemical equation. Identify all of the phases in your answer. then Write an equation to show how H2PO3−H2PO3− can act as an acid with HS−HS− acting as a base. Express your answer as a chemical equation. Identify all of the phases in your answer.For Mn3+, write an equation that shows how the cation acts as an acid. Express your answer as a chemical equation. Identify all of the phases in your answer. For C5H5NH+, write an equation that shows how the cation acts as an acid. Express your answer as a chemical equation. Identify all of the phases in your answer then compare which is more acidicLeucine is an amino acid with this Lewis structure: Write the Lewis structure for the zwitterion form of leucine.
- a net ionic equation to show that morphine, C17H19O3N, behaves as a Bronsted-Lowry base in water.What is the pH of a 0.21 M solution of methylamine (CH3NH2, Kb = 4.4 x 10–4) at 25 degrees C?The substance morphine is a weak nitrogenous base like ammonia.Write a net ionic equation to show how morphine, C17H19O3N, behaves as a base in water.
- Which is more basic - an aqueous solution of borax or an equivalent concentration aqueous solution of lime water?Aqueous solution of ethanol is acidic , basic or neutral?Using paleolimnological methods it is possible to estimate past pH values of surface waters. If the estimate of pH is 5.787 , what is the corresponding PCO2? in atm.
- why h30+ is the strongest acid that can exist in an aqueous solution?What is the pH of an acqueous solution w/the hydro noun ion concentration [H3O+] = 2 x 10^14 M?Bacteria in the human mouth release enzymes to break up sucrose, and thenpolymerize glucose to form a bacterial plaque. When this glucose is digested, it formslactic acid, which causes tooth decay. Tooth enamel is made of calcium phosphate.Lactic acid has a Ka 1.38x10 -4 and ionizes into lactate and H3O+ ions. Assuming aninitial lactic acid concentration of 0.10 mol/L on your tooth, determine the pH(assume a 1:1:1 mole ratio) and the percent ionization. Should people be concernedwith plaque buildup? Justify your answer.