A 0.125 M solution of HNO2 has a pH = 2.08. What is Ka for HNO2?

Q: In a warm environment, which restorative wax is recommended for surface restoration? a. opaque b. ...

A: In a warm environment, which restorative wax is recommended for surface restoration?

Q: A chemist generates the titration curve shown by slowly 12 adding 1.0 M sodium hydroxide (NaOH) to 1...

A: Ka is the acid dissociation constant for weak acid like acetic acid. When Ka is taken -log value , i...

Q: Predict the product for the following reaction. 1. Br2/H20 2. NaOH Br Br OH Br HO II II IV II O IV

A: The reaction given is,  

Q: For the following reaction, 10.3 grams of propane (C3Hg) are allowed to react with 21.3 grams of oxy...

A: Balanced reaction equation C3H8 + 5O2 ---- > 3CO2 + 4H2O Lets calculate the amount of the CO2 pro...

Q: How would you best describe the C-C bonds lengths in benzene relative to cyclohexane? Hypothesize wh...

A: Benzene is an organic aromatic compound that consists of a ring of alternate single and double bonds...

Q: (a)Write the equilibrium expression for the following reaction: Co^2+ (aq) + 3 NH3(aq) Co(NH3)3^2 + ...

A: Kc is the ratio of the equilibrium concentrations of product over equilibrium concentrations of reac...

Q: How is it that methyl alcohol is soluble with water but not hexane?

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Q: Consider the following equilibrium reaction with Kp = 25 at 298 K.   PCl5 (g)     PCl3 (g) + ...

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Q: The reaction of CH3OC1 with LICH3 to form (CH3)20 is second order with respect to both LICH3 and CH3...

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Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide pro...

A: Concept :  Number of moles = mass of the given substance/ molar mass of the given substance.  It's S...

Q: Percent yield of chemical reactions O 0/5 El (CH,(CH,),CH,) reacts with gaseous oxygen gas (0,) to p...

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Q: The bond energy in N2 is 941kj/mol. What is the longest wavelength photon that has sufficient energy...

A: We know that Energy (E) = h×c / λ  Where E = bond energy = 941 kJ/mol = 941×1000 J/mol  

Q: A. Determine the concentration of the glucose stock solution in mg/mL. B. Complete the table above b...

A: For preparation of stock solution, 500 mg of glucose was taken to form 25 mL of the solution.

Q: Write a brief explanation about importance of measurements in chemistry.

A: Accurate, precise measurement is a fundamental component of good science. For this reason, scientist...

Q: Question 4 What is the concentration of Cd-T in a solution of Cd(OH), (Ksp =2.5 x 10-) with a pH of ...

A: Concentration terms are used to represent concentration of a solution.For example,molarity is a conc...

Q: What volume (mL) of 0.0665 M KMnO4 is necessary to convert 12.5 g KI (166.00 g/mol) to I2 in the rea...

A: Given equation is : 2KMnO4 + 10KI + 8H2SO4 --------> 6K2SO4 + 2MnSO4 + 5I2 + 8H2O Molarity of KMn...

Q: The encircled one is an additional chemical entity of this drug that makes it a pro-drug, what is th...

A: A prodrug is a medication or compound that after administration/insertion is metabolized (i.e., conv...

Q: What is the molarity of K+ in a solution that contains 89.72 ppm of K3Fe(CN)6 (329.3 g/mol)?

A:

Q: For the following reaction, 22.6 grams of sodium chloride are allowed to react with 52.2 grams of si...

A: Step 1 Find out the moles of reactants from the given mass.  Moles is the ratio of mass to molar mas...

Q: The Kb of C6H5NH3+ is 3.98x10-10 1. What is its Ka? 2. What is the [H3O+] concentration in a solut...

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Q: A solution is prepared by dissolving 20.5g of LiF in 340.00g water. a. What is the concentration of...

A: a) Given, Mass of LiF = 20.5 g Mass of water = 340.00 g Concentration of the solution in (% by mass)...

Q: + en

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Q: Which substance is the acid? Which substance is the base? Which substance is the conjugate acid? Whi...

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Q: What is the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of 1....

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Q: Putting some partial positive H's near the O- would stabilize the O- by hydrogen-bonding with its lo...

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Q: Starting from a terminal alkene R-CH=CH2, is there any advantage in using the two-step protocol (hal...

A: MCPBA is also has tendency to react with ketone and give ester group. 

Q: Question 3 Calculate the pH of the following solutions: 0.035 M HNO3 solution 5.25 x 10° M Sr(OH)2 s...

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Q: 3. Think about conductivity, freezing point, and boiling point of each of the following combinations...

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

Q: hca Schoolzone Staffzone Employee NorQuest Library MyQuest MyMail Contact Navigator Student Moodle H...

A:  Atom  is the smallest unit of matter which has the properties of a chemical element. It can not be ...

Q: reaction with HCI reaction with PBR3 followed by NaCI reaction with tosyl chloride, followed by hydr...

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Q: CLO S Deduce the structure of an unknown compound using the loll Chemical shifn (d) (ppm) 13 429 747...

A: From proton nmr spectrum,  it is evident that there are 14 H's in the molecule. From mass spectrum, ...

Q: Write the equation for the reaction between bromine and hexane in the presence of light. Is this a s...

A: Given :-  Cyclohexane + Br2 + light →  Cyclohexene + Br2 →  To determine :-  Product formed in ab...

Q: The chemical formula for diethyl ether is: (CH,CH,),0 Calculate the molar mass of diethyl ether. Rou...

A: Molecular mass is defined as sum of molar masses of atoms present in that molecule.

Q: Identify whether the following processes are endothermic or exothermic. Justify your answer. Solid ...

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Q: Biofuels such as wood generate carbon dioxide when they are burned, but biofuels are nonetheless con...

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Q: Using the calculated experimental average density of the liquid samples as reference, what is the pr...

A: Density = (Mass ÷ Volume)  

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts w...

A: We will first write balanced stoichiometric equation, then using it calculate mass of oxygen require...

Q: If 31.4g of NaOH (MM= f Fi 40.00 g/mol) are added to 500.0 mL volumetric flask, and water is added t...

A: Answer: To find out the molar concentration of NaOH, first of all we will find out its number of mol...

Q: List ALL the significant peaks in the IR spectrum of each molecule below by showing which functional...

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Q: How many grams of glucose (C6H12O6) are present in 257.3 mL of a 11.2 M solution?

A: Molarity of a solution can be defined as the number of moles of solute dissolved per litre of soluti...

Q: Ammonium phosphate ((NH,),PO4) is an important ingredient in many fertilizers. It can be made by rea...

A:

Q: How many grams of solid Cu2SO4 5H2O (249.68 g/mol) must be dissolved in 400 mL of water to obtain a ...

A: Given :-  molarity of Cu+ ions = 0.0899 M  volume of water = 400 mL  molar mass of Cu2SO4 5H2O = 249...

Q: Charles LAW A Sample of from 380ML to 2 30 mL. If its tinal temperature as-ss°c, what was its origin...

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Q: How many grams of NaH2C6H507 must be added to a 300 mL solution of 0.15 M H3C6H507 (Ka = 3.2x 10) to...

A:

Q: c. 0.756 g/mL to ng/L d. 9.647 x 10 nm/s to m/yr (Assume that the year is 2022).

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Q: What volume of methane (CH4) is required to react with 162 liters of carbon tetrachloride according ...

A: The balanced chemical equation for the reaction of methane (CH4) and carbon tetrachloride (CCl4) is ...

Q: Question 4 What is the concentration of Cd-" in a solution of Cd(OH)2 (Ksp= = 2.5 x 10-) with a pH o...

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Q: Suppose you are asked to determine the identity of a white solid. When you add water to the white so...

A: Among these , MgCl2,ZnCl2 and CaCl2 are soluble in water , and PbCl2 is slightly soluble in water.

Q: 3) What volume (in mL) of guanidine, CH5N3, is required to prepare 250 mL of the following solutions...

A: A question based on concentration terms that is to be accomplished.

Q: The following reaction is exothermic. Which change will shift the equilibrium to the left? 2S02(g) +...

A:

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.