Calculate the activity of the bromide ion in a solution that is 0.050M KBr, 0.050M NaBr, and 0.050M HBr.

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: Stoichiometry:  can someone please explain how to find How many grams of H2O are produced if 2.2…

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Q: A 20-mL vial of concentrated ammonium chloride solution containing 5 mEq/mL is diluted to 1 liter…

A: It is given that A 20-mL vial of concentrated ammonium chloride solution containing 5 mEq/mL is…

Q: How should a volume be read on a buret? Question 21 options: Below eye level Above eye…

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Q: Name the following: Two elements belonging to the same period as Iron. Two elements belonging to the…

A: Note: According to our guidelines we are supposed to answer only first three subpart. Kindly repost…

Q: Which of the elements goes completely into substitution solution with Ni?

A: SUBSTITUTIONAL SOLID SOLUTION:-Solution in which atoms of solute substitute the atoms of solvent at…

Q: Three perfect gases, all at a temperature of 25°C, are placed into a box with sides of length 1m,…

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Q: Solid aluminum metal reacts with oxygen to form aluminum oxide. a. write a balanced reaction b. If 1…

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Q: 3. As part of an experiment, you need to make 150 mL of a 0.750 M ammonium hydroxide solution from…

A: Molarity of the required solution, C = 0.750 M or 0.750 mol/L  Volume of the required solution, V =…

Q: 7) Look at the lattice structure of each solid and match it with the type of solid. cr Zn Si or C O…

A: We would check the position of atoms in each given structure.

Q: Question 4 Convert 81.9x10-6 Matm to psi. Give your answer in scientific notation (e. g. 1.23E4…

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Q: Identify if the following matecule is a strong acid, strong base, weak acid or a weak base, sodium…

A: The species that increase the concentration of hydrogen ions or hydronium in an aqueous solution act…

Q: In each problem the DNA Triplet code is given. Determine the mRNA codon using base pairing and…

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Q: i already have answers for items a-d.  Experiment Molar mass, g/mol 1 6.9391 2 6.9407 3 6.9409…

A: Given : Experiment Molar Mass Experiment  Molar Mass, g/mol   1 2 3 4 5 6 7   6.9391 6.9407…

Q: 2. A system consists of 1 mole of ideal gas is taken through the cycle shown below from (123). For…

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Q: 1. For each of the following mixtures, explain whether it is a solution (homogeneous mixture) or a…

A: Introduction In the field of chemistry, a mixture is a substance made up of two or more unrelated…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: Here we are required to find the Enthalpy of vaporization .

Q: Here is a graph of the pressure of ozone atm (03) in a reaction vessel during a certain chemical…

A: A question based on kinetics of reaction in chemistry that is to be accomplished.

Q: +++ Complete the Chart-fill in the name or draw the structure of the functional group 1.Ether 2.…

A: It is asked to write the structure or functional groups given in the question what ever is blank.

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: A butter mixture is required to buffer a solution at pH 6.1. Which of the two weak acids, along with…

A: Concept based on the buffer solutions.

Q: Br n +

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Q: 1-A 0.2954-g sample of an unknown monoprotic acid is dissolved in water and titrated with…

A: Given, Monoprotic acid: HX Potassium hydroxide: KOH mass of sample of an unknown monoprotic acid =…

Q: What is the mass, in grams, of 28.74 mLmL of acetone? Express your answer using four significant…

A: Here, we have to find the mass of acetone (in grams) of 28.74 mL of acetone.

Q: Convert 6.75 g/L to lb/in³. Give your answer in scientific notation (e. g. 1.23E4 instead of 12340).…

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Q: Propose products (if any) and mechanisms for the following AICI,-catalyzed reactions: (a)…

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Q: 2. Consider the following reactions in open systems: I. II. III. IV. 2H2(g) + O2(g) → 2H₂O(g)…

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Q: what is the mechanism of amine and aldehydes in methanol? why does the reaction occur by refluxing?

A: Organic reactions are those in which organic reactant react to form organic compounds.

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: A 2.9-g sample of rice is placed in a calorimeter. When the sample is burned, 23 kJ is given off.…

A: Given:- 2.9 g rice on burning gives 23 kJ energy.                            2.9 g gives=> 23 kJ…

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

A: Given

Q: What is the molarity of a NAOH solution if 17.08 mL are needed to neutralize 31.95 mL of 0.2121…

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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: Considering that the Redfield ratio for algae is C:N:P = 106:16:1, what would be the limiting…

A: Given  ( Red field ratio for algae is C:N:P = 106:16:1 ) Mass concentrations of C= 20 mg/L =…

Q: a) b). c). CH3 OH Br 2

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

Q: What are the differences between endocrine and exocrine glands?

A: Endocrine glands - The organs that makes hormones that are released directly into the blood and…

Q: value of 28.4 at 298 K. In a reaction mixture at equilibrium, the concentration of NO is 0.144 M and…

A: Equilibrium constant is ratio of concentration of products to concentration of reactants

Q: N BACK p2 Explanation EN ci B This is not \ Correct

A: The  process of delocalisation of pie electrons from high density to lower density is known as…

Q: B. Functional Groups Indicate all functional groups present in each of the following molecules.…

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Q: For the image attached Make a graph of the average volume and vs year. Please label your x and y…

A: The graph to be plotted is Average Volume Versus Year.  Hence we have to take "Average Volume" on…

Q: 5.EPS made from------ 1.polystyrene 2. monomer styrene 3. photolysis 6.Thermal insulation has…

A: Question 5: EPS stands for expanded polystyrene. It is a type of thermoplastic foam that is made up…

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

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

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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: (b) Visualise the retrosynthesis for the (as following instructed) (i) (ti) PH target compounds…

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Q: How many moles of He are 221,000 He atoms?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 2. As the director of a research laboratory you are paid to decide if there is a significant…

A: Given: Hence we have to find out whether there is any difference between two sets of data or not .…

Q: OH PBr3 Et₂0 Nal NaBH4 EtOH CH₂SO₂CI pyridine Mg THF HO OH Et₂0 H₂SO4 80 °C

A: Organic transformations

Q: Test the following differential for exactness. PM dp= RT² M and R are constants M dT + dP RT

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Q: A chemist prepares a solution of potassium dichromate and filling the flask to the mark with water.…

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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.