dentify the buffer systems below: 1. KH2PO4/ H3PO4 2. NaClO4 /HCIO4 KF /HE 3. 4. KBr / HBr 5. Na2CO3/NaHCO3

Q: Why would a scientist prefer to use the graph of radiation intensity versus (1/distance)^2 as…

A: A number of physical properties (like the force , intensity between two system) get smaller as they…

Q: Using standard reduction potential, calculate the standard free energy change if oxygen is reduced…

A:

Q: 5. What is the name of the compound CH₂CH(CH3)C(CH3)3? a. 2,2,3-trimethylbutane 7 b.…

A:

Q: An analytical chemist is titrating 126.8 mL of a 0.2600M solution of diethylamine ((C₂H₂)₂NH) with a…

A: Given : Concentration of diethylamine = 0.2600 M  Volume of diethylamine = 126.8 ml  Concentration…

Q: small! X= 5.92x1 CH'J 9) Calculate the pH of a solution that contains 1.00 MHCN (K 6.2 x 10-¹) and…

A: Given: Ka for HCN = 6.2×10-10 Ka for HNO2 = 4.0×10-4 We have to calculate the pH of a solution that…

Q: 20) Which molecule is a primary amide? A) CH,CH2NH(CH3)2 B) CH3NHCOCH3 C) C6H5CONH2 D) CH3NHCH₂CH3

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: Directions Write the half-cell reactions. Fe²+ (aq) + Cu(s) 1. Fe(s) + Cu²+ (aq) 2. 2 Mg(s) + O2(g)…

A: Here we are required to find the halfcell reaction

Q: Please don't write your answer in a paper. I can't understand handwritten.

A: Eocell= Eocathode - Eoanode For this provided reaction Eocell is = EoAg+/Ag - EoCd+2/Cd…

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: In this question, we will identify first the limiting reagent and then determine the maximum mass of…

Q: A 1.37 M aqueous solution of citric acid (H3C6H5O7) has a density of 1.10g/cm^3. What is the mole…

A: Assume you have 1 L of the solution. That 1 L will contain 1.37 mol citric acid, and the solution…

Q: Using the data below, determine how much heat (in Joules) is required to convert 405.0 g of ice at…

A: we have to calculate the heat needed for the given conversion

Q: What is the concentration of H₂O(g) after a mixture that contains 1.5 M of H₂O(g) and 1.5 M Cl₂O(g)…

A:

Q: (25) With respect to the following unbalanced redox equation that takes place in basic solution:…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: rate of formation of As(g) is:

A:

Q: Chemistry 19. Draw the products of each reaction. using pka values decide if the equilibrium favors…

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Q: a) Suppose that a reaction of 100 mL of 0.5 M HC1+25 mL of 2 M NaOH, the Ti is 33.4 °C and T₂ is…

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Q: 3.Propene can be reacted with hydrogen gas through an addition reaction to form propane. Estimate…

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Q: Fill in the information missing from this table. nuclide protons neutrons Z A 0 67 98 0 0 0 0 0 0 0…

A:

Q: Information about lead metal

A: There are three types of substances-  1- metal 2- non-metal 3- metalloid

Q: Use the following information to answer the next question. 1. H₂PO4 5. CH4 2. HCI 6. NH3 3. CH₂OH 7.…

A: Acid is substance which release hydrogen ions and base is a substance which release hydroxyl ions.

Q: Calculate w for the adiabatic reversible expansion of 65 moles of an ideal gas at 273.2 K and 20 atm…

A: Given that, for an adiabatic reversible process of an ideal gas The number of moles is n = 65 mol,…

Q: Find the AHin for the following reaction: 2C(8) + H₂(g) → C₂H₂(g) given the following reactions and…

A:

Q: QUESTION 8 What volume does 6.2 x 10 20 molecules of O 2 occupy at STP?

A:

Q: What is the half-life of a compound, A, if 75.0 percent of a given sample of the compound A…

A: 75.0 % of compound A decomposes in 60.0 min. The decomposition follows first-order kinetics.Here,…

Q: Indicate, by letter(s), the position(s) on the ring at which substitution occurs when the aromatic…

A:

Q: predict major organic products. Explain your answer!

A: In this question, we will draw the structure of the products which is form by after the breaking of…

Q: Draw a structural formula for the major organic product of the following reaction: CH₂Cl₂ Br₂

A:

Q: choade the correct option for (a) and (16) and explain why it's carrect? 2) The Salid impurities…

A: Vacuum filtration Gravity filtration It is a filtration method that employs pressure induced…

Q: Aniline is a weak base. The pH of a 0.010 M aqueous solution of aniline is 8.32. What is the percent…

A: The percentage of dissociation of  aniline can be calculated as follows

Q: which of the following structures, if flat, would be assified as antiaromatic

A: Aromatic compounds are those that obey Huckel rule and has 4n+2 pie electrons.

Q: An analytical chemist is titrating 64.7 mL of a 0.8500M solution of acetic acid (HCH₂CO₂) with a…

A: Here we are required to find the PH of the solution .

Q: (Q121) Technetium-99 is an unstable isotope used in various medical procedures. Given a half life of…

A:

Q: Which of the following pairs will make a buffer?

A: A buffer solution is a solution that only changes slightly when an acid or a base is added to it.

Q: A. Picric acid (2,4,6-trinitrophenol) is slightly soluble in water but is readily soluble (with…

A: Strong acids soluble in weak base like NaHCO3 Electron withdrawing groups enhance the acidic nature…

Q: 3. Circle the correct option in the each of the two following scenarios: a. The solid impurities…

A: Answer a :   Vacuum filtration is faster than gravity filtration. In vaccum filtration the solvent…

Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: Given Sample 19 umol Or 1/16 decreases

Q: The equilibrium constant of the reaction shown below is 2.41x10^8 at 25 degrees Celsius: 3Ag(s) +…

A:

Q: A chlorous acid buffer containing 0.75 mol of HClO2(aq) and 0.75 mol of NaClO2(aq) in 1.00 L has a…

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Q: sodium carbonate combined with aluminum nitrate Draw a particle diagram for the reactants and…

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Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 2 SO₂(g) + O₂(g) → 2 SO3(g)…

A:

Q: find the ph of the solution that is formed by diluting 55 Ml of 0.023 mole/L hydroxide acid to a…

A: Ph of acid is below 7 generally.

Q: How much water should be added to 14mL of 15% alcohol solution to reduce the concentration to 7%?

A: Given,         V1 = 14 ml  M1 = 15%        V2 = ?         M2 = 7 %

Q: (Q122) Which of the following is a unit used for measuring the biologically effective radiation dose…

A: Hence option (c) is correct answer

Q: Determine the amount in grams of KCI that exists in 20. g of a solution that contains 1.14 % KCl by…

A: A solution is made up solute and solvent. Solute is present in small amount and solvent is present…

Q: Rank the following compounds in order of their basicity, from most to least basic: NH₂ most least…

A: Base can be defined as a species that can donate a lone pair of electrons.

Q: pH = 7,36 PCO₂=36 mmol/l 2 SB= 19,5 mmol/l BB=39 mmol / BE=-5 mmol/l

A: The concept is in respect to Arterial blood.

Q: Occasionally in organic synthesis, an ionic product is formed. In these cases, it is often necessary…

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Q: ) Which of the following can exhibit geometric isomerism? a. 1-propene b. 1,2,2-tribromoethene c.…

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Q: The pH of 0.01 M hydrochloric acid (HCl) is 2, the pH of 0.01 M sulfuric acid (H2SO4) is 1.7, and…

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Q: The reaction Na₂SO4-10H₂O → Na₂SO4 (8) + 10H₂O(g) has a K₂ = 5.38 x 10-12 at 21.3°C What is its K R…

A: For a gaseous reaction, the equilibrium constant can be measured by the concentration of the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.