In order to obtain 3.500 % of acetic acid, what weight of a sample must have been taken for analysis if the vinegar requires 20.50 mL of 0.1150 N KOH solution for an end point of phenolphthalein indicator?

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Q: Water and sodium chloride are both considered substances as well as compounds, but water exists as m...

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Q: QUESTION 19 What is the exchange energy (in T e) of a d complex in the low spin state ? 17 O A. 2 O ...

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Q: (a) Calculate the [H30+] for each buffer solution and enter the value in Table D. Use the formula [H...

A: This question is related to finding out the pKeq and relevant statistics of the table. Follow the fo...

Q: gas state reacts with 1 mole of water in the gas state, 1 mole of ethanol in the gas state is produc...

A: C2H4(g) + H2O(g)----> C2H5OH(g) 0.020 M    0.015 M      1.35 M  

Q: What is the chemical formula of carbon octoxide. * a. COs b. COs В. c. CO, d. CO O D. C. B.

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Q: How do you calculate for the equilibrium or solubility constant of a dissolution reaction given the ...

A: To Calculate equilibrium or solubility constant of a dissolution reaction given the ionic strength a...

Q: An analytical chemist is titrating 159.6 ml. of a 0.7000 M solution of diethylamine ((GH), NH) with ...

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Q: Solve the given problems with complete solution. Consider the following reactions: 3 Ni 2* (aq) + 2C...

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Q: What is the boiling point of solution of an 0.531 molal of an aqueous sugar solution? Kb H2o = 0.51 ...

A: Elevation in boiling point is a colligative property of a solution. Molarity of sugar solution = 0.5...

Q: Calculate the initial concentration of  Fe ion in the solution below.   Fe3+ (aq) + SCN– (aq)  ⇌  ...

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Q: Q2. a) What is Atom Economy? Calculate Atom Economy for the following reactions, Synthesis of 1-brom...

A: This Question is based upon Atom Economy.

Q: What is the concentration in %m/v of a 0.729 M aqueous solution of ethanol (MM = 46.07 g/mol)? %3D

A: % m/v mean grams of solute per 100 mls of solution.

Q: Question 9 Given the volume of 0.2000 M N2OH used determine the concentration of 10.00 ml sample eac...

A: 12.55 mL of 0.2000 M NaOH used to determine the concentration of 10.00 mL of aqueous (Aq) layer. 15....

Q: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a Pe...

A: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a Pe...

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Q: Greenhouse gases cause the earth surface to be *   a. cooler b. hotter c. more dense d. no effect

A: Commonly found Greeen house gases are CO2, methane, water vapour, nitrous oxide etc. 

Q: Question 16 Simple extractions are particularly useful for separations where only one component has ...

A: Liquid liquid extraction are also known as solvent extraction is defined as the method used to separ...

Q: The hydrogen ion concentration of a solution is 1.40x10-8 M. What is the pOH of the solution? Expres...

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Q: Calculate the molarity of 126.2  mL of diluted NaOH solution prepared from 16.6 mL of 6.9  M NaOH st...

A: To solve this problem we will use the formula of dilution law .  According to this law  M1V1 = M2V2 ...

Q: A 5.00-mL sample of blood was treated with trichloroacetic acid to precipitate proteins. After centr...

A:   Given : 1.Absorbance of standard solution(A1)         = 0.396  (first point) 2.Absorbance of stan...

Q: MISTRY 2400 EXPERIMENT 7: BROMINATION OF CINNAMIC ACID WINTER 2022 For the trans isomer of cinnamic ...

A: Kindly request please upload each question separately. If u like the answer then please do upvote th...

Q: Br, a) CH,CI, b) Br2 CH,Cl, c) Br2 CH,Cl,

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Q: A 16.4 sample of gas at STP is heated to 55 degrees at 605 torr. What is the new volume?

A: Given- Weight = 16.4 gm At STP -> P1= 1 atm T1= 273 K V1= 22.4 L T2= 55°C = 55+ 273 = 328 K P2= 6...

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Q: The time of outflow of a gas through a small opening is 43.3 mins, while that of an equal mass of hy...

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Q: What is the mass % of propylene glycol in a 1.89 M solution of propylene glycol (MM = 76.09 g/mol) i...

A: Given- Molarity = 1.89 M Molar mass = 76.09 gm/mole Density of solution = 1.03 g/ml  

Q: Consider the reaction below which can occur during the reforming process when manufacturing high oct...

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Q: The molar heat capacity of a diatomic molecule is 29.1 J-K-1.mol-1, Assuming the atmosphere contains...

A: Step 1:Total heat intakeq = C *Δt    = 29.1 J/Kmol * 3K    = 69.84 J/mol  

Q: If 29.7 mL of 0.205 M KOH is required to completely neutralize 25.0 mL of a CH;OOH solution, what is...

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Q: CH2

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Q: A 1 liter solution is made by adding 0.5844 moles NaH2PO4 and 0.5116 moles Na2HPO4. What will be the...

A: A 1 liter solution is made by adding 0.5844 moles NaH2PO4 and 0.5116 moles Na2HPO4. What will be the...

Q: 15. Titanium (IV) chloride is reduced by magnesium to produce titanium according to the following re...

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Q: A compound contains carbon and hydrogen only. A combustion analyzer collects 15.84 g of CO2 and 8.10...

A: Given,  compound contains carbon and hydrogen only. A combustion analyzer collects 15.84 g of CO2 an...

Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas rea...

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Q: Which is not a characteristics of crystal solid? *     a. melting point is not sharp b. definite geo...

A:                                 Answer  Which is not a characteristics of crystal solid     stro...

Q: Calculate the pH, pOH, [H*], & [OH] of a 0.025M Ba(OH)2 solution.

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Q: A 1.00 liter solution contains 0.60 M ammonia and 0.46 M ammonium iodide. If 0.23 moles of nitric a...

A: A buffer solution is formed by the mixing of weak acid with its conjugate base or weak base with its...

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Q: Is the solution acidic, basic, or neutral? A. Solution has a hydrogen ion concentration of 4x10-4 M...

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Q: Convert 469 mm Hg to atm. • Your answer should be in units of atm. Do not include the units on your ...

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Q: Industrially, methanol is normally produced by reacting hydrogen and carbon monoxide gasses together...

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Q: At 1.00 atm and 298.15 K, a solid substance with a molar volume of 100.15 cm3/mol with melting tempe...

A:  At 1.00 atm and 298.15 K, a solid substance with a molar volume of 100.15 cm3/mol with melting temp...

Q: Calculations: Calculate the moles of each reactant. Note that the hydrobromic acid and hydrogen pero...

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Q: Aqueous sodium carbonate – Na2CO3 – and aqueous aluminum nitrate – Al(NO3)3 – combine to rapidly for...

A: Aqueous sodium carbonate – Na2CO3 – and aqueous aluminum nitrate – Al(NO3)3 

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Q: a gas occupies 42.6 L at 2.00 atm pressure and 27 degrees. calculate its volume if the pressure is d...

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Q: An increase of greenhouse gasses would have what effect on the planet? *   a. Decrease the Temperatu...

A: Effect of greenhouse gases — Greenhouse gases plays important role in environment of planet.  

Q: 2. What is the molarity of a solution that contains 12.1 grams of Silver nitrate that has been disso...

A: Given Data :  1. Mass of Silver nitrate (Solute) = 12.1 g  2. Volume of solution = 700 mL           ...

Q: 5) Draw the following molecules from their given names, determine if they are chiral or meso. a) (1R...

A: The compound having more than one chiral carbon but have a plane of symmetry then it is known as mes...