Calculate the mass of sodium acetate that must be added to 500.0 mL of 0.290 M acetic acid to form a pH = 5.00 buffer solution.

Q: As pure elements, all of the halogens are diatomic molecular species. Their melting points are: F2, ...

A: Astatine is a member of halogen group having no stable isotope.

Q: A 22.0 g block of copper at 45'C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 Ng-...

A: given :-  mass of Cu = 22.0 g  specific heat of Cu = 0.385 J/g°C  initial temperature = 45 °C  heat ...

Q: Preparation and Standardization of 0.05 M Disodium Ethylenediaminetetraacetate (EDTA) Preparation: (...

A: Given question is standardization of EDTA with CaCO3 solution.

Q: A brand of window-cleaning fluid is composed of ammonia solution, water, a colouring agent, and a ve...

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Q: sample of He occupies a volume of 213 mL at 132.3 kPa. What volume in ml would the gas occupy if the...

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Q: A solution is made by dissolving 36.7 g of HCl in 885 mL of water. Calculate the pH of the solution.

A: Given data of the following, mass of HCl = 36.7 g molar mass of HCl =36.458 g mol-1 Volume=885 ml = ...

Q: OH + H-C-0 (C) 0. (a)

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Q: 1.50 g hydrocarbon compound undergoes combustion to produce 8.80 g of CO2 and 5.40 g of H2O. What is...

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Q: Be sure to answer all parts. Caleulate the molecular mass or formula mass (in amu) of each of the fo...

A: Molecular mass - The sum of the atomic masses of all atoms in a molecule. 

Q: is NaHSO4 polar or nonpolar?

A: Given -> NaHSO4      

Q: ulate the pH at the equivalence point in the titration of 50 mL of 0.10 M methylamine = 4.3 × 10) wi...

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Q: Stage 1 Stage 2 Stage 117 GAS LIQUID-GAS 100 - LIQUID 85 Heat absorbed- (5.) enpiodwel

A: The basic concept is that when any substance is heated, the particles gain energy and thus start vib...

Q: What is the principal quantum number (n) for the valence electrons in lead?

A: Quantum numbers can be defined as the set of 4 numbers that help us to know about the electrons pres...

Q: 1.Calculate the number of moles and millimoles of benzoic acid (MM= 122.1 g/mol) that are contained ...

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Q: A sample of gas occupies 36.3 ml at a pressure of 783.3 torr. What is the new volume if the pressure...

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Q: 2NaOH + H2SO4→ → Na2SO4 + 2H2O What is the mole ratio of sodium hydroxide to water?

A: Sodium hydroxide reacts with sulfuric acid to form sodium sulfate and water. The equation for the ba...

Q: Provide methods for synthesizing the following compounds. In each case, ethylmagnesium bromide must ...

A: Detail mechanism for every conversion is shown below

Q: What is CH3CH2NH3+ classifed as? Group of answer choices strong acid weak acid strong base weak bas...

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Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is b...

A: Here only we have to use the mass of AgCl precipitate. We convert it into moles and from that we can...

Q: NH2NH2 ? H Mild Acid N-Me Vicodon Мео. Мео. H H N-Me H* H N-Me N NH2 Me HN в A Meo, Meo. H H N-Me H ...

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Q: according to the equation below. 6CO.(g) + 6H,0(1) C,H,O,G) + 60,(8) Substance CO.lg) H,O() CH,Odls)...

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Q: In a typical cold pack (used for sports injuries), a salt such as ammonium nitrate is kept in a sepa...

A: Dissolution of ammonium nitrate in water is given by, NH4NO3(s)→H2O(l) NH4+(aq)+NO3-(aq)   ∆H=+25.09...

Q: Determine how many grams of each of the following solutes would be needed to make 2.50 x 102 mL of a...

A: Molarity = moles ÷ volume (L)  Mole = molarity × volume (L)  Mass = mole × molar mass

Q: Exp [CO, Imk, M [OH ]mitr M Initial Rate, M/s Temperature, ºc 0.020 0.050 1.4 X 10-3 25.0 2 0.020 0....

A: Question 2

Q: Clikk in the ansner bes to activate the palette. Halance the equation representing the reaction hetw...

A: Answer: Balancing of a chemical reaction is based on concept of conservation of mass and for that at...

Q: What is the equilibrium constant expression for the following reaction? B(aq) + H2O(l) ⇌ HB+(aq) + ...

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Q: 3. What mass of solute in milligrams is contained in 26.0 mL of 0.250 M sucrose (342 g/mol)? [ 2.22 ...

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Q: 1.How many grams of disodium EDTA is needed to prepare a 350mL solution?   2.What is the molecular w...

A: Experiment is about EDTA.

Q: What is the mass of 4.50 x 1044 Cu atoms?

A: Given :- number of Cu atoms = 4.50 × 1022 atoms  To calculate :- mass of Cu (in g)

Q: Answer the following questions about the Lewis structure for iron (III) hydrogen phosphate, Fe2(HPO4...

A: Lewis structure of Hydrogen phosphate ion is given by,  

Q: Calcium hydroxide is prepared by adding calcium oxide to water: CaO (s) + H2O (l) → Ca(OH)2 (s) Ca...

A: Given, Calcium hydroxide is prepared by adding calcium oxide to water: CaO (s) + H2O (l) → Ca(OH)2 (...

Q: BH

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Q: Enter yeur ansmer in the provided bor. The reaction between nitric exide (NO) and oxygen to form nit...

A: Nitric oxide reacts with oxygen to form nitrogen dioxide. The equation for the balanced chemical rea...

Q: A 10.5g kixture contains potassium chloride. Excess lead (II) nitrate solution Pb(NO3)2 (aq), is add...

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Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form nit...

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Q: laboratory procedure calls for 250 mL of an approximately 0.10 M solution of NH3. Describe how  you ...

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Q: A eudiometer tube (ET) is found to have a conversion factor "f" of 0.89 mL/ET unit. The experimental...

A: The conversion factor for the Eudiometer tube ; = 0.89 ml/ET The reading on Eudiometer tube = 37.10 ...

Q: Be sure to answer all parts Hew many moles of cobalt (Ce) stoms are there la 2.00 x 10 (200 hillion)...

A: Given, Number of Co atom = 2.00×10^9  Avogadro's no. = NA= 6.023×10^23

Q: Be sure to answer all parts. Use the table to calculate AG for the following reactions at 25°C. Spec...

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Q: 1. Calculate the vapor pressure of a mixture containing 35.6 g of glucose and 5 mL of ethanol at 25°...

A: Given :-  Mass of glucose, C6H12O6 = 35.6 g  Volume of ethanol, C2H6O = 5 mL  Temperature = T = 25 °...

Q: An unknown compound has the molecular formula C6H12O2. The compound shows a strong peak in its IR sp...

A: molecular formula C6 H12  O2 IR Spectrum - 1700 this peak is due to C=O stretching   

Q: A 200mg sample of pure calcium carbonate was acidified and dissolved in 500mL of a solution. A 50mL ...

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Q: Calculate the molar mass of a compound if 0.460 mole of it has a mass of 385.0 g.

A: Given :-  No.of moles of compound = 0.460 mol  Mass of compound = 385.0 g  To calculate :-  Molar ma...

Q: Substantially discuss how Nitration of Toluene works

A: Toluene gives ortho and para isomer by the nitration,but it heated it can be give dinitro toluene an...

Q: The mass of lead chloride that is dissolved in 125 mL of a saturated solution is grams.

A: According to the question, we need to calculate the mass of lead hydroxide dissolved in 125 ml of a ...

Q: NO2 ZON 'N. CH3 N. CH3 A о в

A: Answer: This question is based on the capacity of donating the lone pair in a reaction, higher that ...

Q: When 0.7521 g of benzolc acid was burned in a calorimeter contalning 1,000. g of water, a temperatur...

A: Given data: Mass of benzoic acid = 0.7521 g Heat of combustion of benzoic acid = - 26.42 kJ/mol Mass...

Q: Select the major product of the following reactions. 1. NH(CH3), 2. H3O* II II IV No reaction IV II ...

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Q: Calculate AStot for the evaporation of 165 mol of persons sweat. Because the persons temperature doe...

A: Entropy of the substance is  amount of  energy that is present in the system but unavailable to do w...

Q: Formula Lewis structure AXE Electron group Molecular Bond Polarity Notation geometry geometry angle ...

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.