A 26.9 mL sample of 0.348 M ethylamine, C2H5NH2, is titrated with 0.391 M hydrobromic acid. After adding 9.67 mL of hydrobromic acid, the pH is _______

Q: Study the reaction show below: NH2 NH2 H,NO2S- -N=N- - NH2 H,NO2S- - NH2 + H,N- -NH2 > Identify the…

A: The given substrate is known as Prontosil (antibacterial drug) which consists the azo functional…

Q: what drug is this？forgot the details，but looks similar like this compound

A: Structure is written wrong. If valency properly maintained then the structure should be like…

Q: Predict the probable structure of a compound with formula CI,Mn,CgOg, 8. where the mass spectrum…

A: inorganic IR spectroscopy

Q: TRUE for non-metal elements? Non-metals do not conduct electricity well Non-metals are represented…

A: Yes non metals do not conduct the electricity well as because they do not have/posses free electrons…

Q: TABLE 9.7 Solubility Rules for lonic Compounds in Water An lonic compound is soluble in water if it…

A: Solubility of any inorganic salt is determined from the solubility rules. Here solubility indicates…

Q: Select all of the following conditions that would promote a reaction in which 1 equivalent of an…

A: At pH > 7, solution is basic and pH < 7, solution is acidic in nature.

Q: For Q5 - Q8: Observe carefully the figure below: H,C6 COOCH,CH3 H,C6 COOCH,CH3 N. N. CH3 Question 5…

A: All the questions have been answered in the following step.

Q: A water quality investigation is conducted in a suburban stream. Investigators determ that there are…

A: Bluegill fish is a fresh water fish. They are often called as bream, brim or perch. They are widely…

Q: 3) Use thermodynamic tables to calculate AH°rxn for this reaction: CaCO3(s) → CaO (s) + CO2 (g)

A: Using thermodynamic tables: Standard enthalpy of formation values are: dH°CaCO3 = -1206KJ/mol dH°CaO…

Q: INTERACTIVE EXAMPLE Balancing Oxidation-Reduction Reactions (Basic) Balance the following…

A: Here we have to balance the given ionic equation. It can be balanced by ion - elctron method The…

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

A:

Q: 3. Find the molar fraction of HCI in vapors over solution of 1.86 g of HCI in 100 g of benzene.…

A: given mass of HCl in solution = 1.86 g Molar mass of HCl = 1.01 + 35.45 = 36.46 g mol-1  Given mass…

Q: Construct the expression for Kc for the following reaction. FeO(s) + H:(g) = Fe(s) + H:O(g) Drag the…

A:

Q: Suppose you have a solution containing 1.0 M NaCI, 2.0M Na20, and 0.5 M CaCl2. What are the total…

A:

Q: Provide the structure of the product of the following synthesis. (1) ether 2 -MgBr + CH3 -C. (2)…

A: Mechanism:

Q: at is the formula of the coordination compound containing anion [Fe(OH)6]3- and ion Na* ? а.…

A: Which one of the following is correct answer

Q: The reaction 3C12 + 6KOH -- KCIO3 + 5KCI + 3H2O is the: a. combustion O b. acid-base reaction O C.…

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Q: A voltaic cell is constructed with two silver electrodes, where the half-reaction is Ag2+(aq) + 2e-→…

A:

Q: Identify different industries and commercial products where the gravimetric analysis can be used and…

A:

Q: (a) Structure A shown below is a badly drawn organic molecule -HO- CH3 -COOH H A (i) Explain, with…

A:

Q: D ot [References] Use the References to access important values if needed for this question. A…

A:

Q: [References] A factory wants to produce 1.00 × 10° kg barium from the electrolysis of molten barium…

A: It is an application of Faraday law of electrolysis  Here we are required to find the current…

Q: In a graduated cylinder, if the lowest part of the liquid meniscus falls SLIGHTLY ABOVE the line for…

A: Given, The lowest part of the liquid meniscus falls slightly above the line for 5.71 mL, and the…

Q: Complete the sentences below.  If the element symbol is provided, complete the sentence with the…

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Q: Instructions (questions 36–40): Consider the following reactions. Draw ALL POSSIBLE PRODUCTS,…

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Q: Which of the following statements is false? A. The change in free energy is less than zero for a…

A:

Q: A solution is made by dissolving 41.3 g urea (CH4N2O), a nonelectrolyte, in 275 g water. Calculate…

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Q: Rank the compounds in each of the following groups in order of increasing standard molar entropy. a)…

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Q: Balance using the half-reaction method. Show your work. Ni(s) + H2O2(aq) →Ni2+(aq) + H2O(l) b.…

A:

Q: Questioh 4 Calcium carbonate breaks down into calcium oxide and carbon dioxide when heated. The…

A: given, calcium carbonate = calcium oxide + carbon dioxide   products have greater energy than…

Q: Consider the reaction scheme below. Br2 FeBr3 CI AICI3 NaOH Y warm What are the structures of X, Y,…

A: Given reaction diagram is :  Identify the X, Y and Z products = ?

Q: 2. -You are given a white solid which could be either AgNO; or Pb(NO3)2. How would you determine the…

A: To differentiate between AgNO3 and Pb(NO3)2 the compound used is ammonium hydroxide.

Q: 267 grams is the same as ___ milligrams. 0.267 267,000 2,67 26,700 0.00267

A: Hello dear welcome on bartleby;   The correct answer is 267,000

Q: When a sample of neon with a volume of 634 mL and a pressure of 0.896 atm was heated from 18.0 to…

A:

Q: The figure below is a mass spectrum in ESI- MS. Calculate the MW of the protein analyzed from the…

A: The figure is given as the mass spectrum in ESI-MS. The MW of the protein has to be calculted.

Q: draw the bond-line structure of (1R)-1-chloro-1-cyclohexylpropan-1-ol.

A:

Q: How many cm3 of water will be required to prepare 3% NaNO3 solution starting from 0.6kg of this salt

A:

Q: time will not stop. swer all questions to the best of your ability. Ek, Question 2 A 100.0-g sample…

A: Given that: Mass of water(m) = 100.0g Initial temp(T1) = 25.0°C Final temp.(T2) = 27.0°C Change in…

Q: The best way to decrease reaction rate is to do which of the following? A use a catalyst; increase…

A: Given,  Options are :

Q: For the reduction half-reaction, which half-reaction correctly balances the elements on both sides?…

A: In all the options charged not balanced and for balancing the charge after balancing all elements in…

Q: Which of the following reactions is classified der addition reactions? A. Bromination of Benzene B.…

A: Which one of the following is correct

Q: CH,OH 38. CHCH,CH3 Br

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

Q: What are the signs of AS, AH, and AG for the sublimation of dry ice (solid CO2) at 25°C? AS ΔΗ AG

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: Determine the value of AG° for the reduction of iron ore with hydrogen gas: Fe,O; (s) +3H,…

A:

Q: Calcium carbonate breaks down into calcium oxide and carbon diox- ide when heated. The products have…

A:

Q: The most important way that the pH of the blood is kept relatively constant is .. а. by Ca 2+ b. by…

A: The correct answer is given below

Q: Consider the skeletal structure shown below: N-C-C-N Draw the Lewis structure and: 1- indicate the…

A: Carbon with 4 sigma bonds = sp3 hybridization  Carbon with 3 sigma bonds = sp2 hybridization  Carbon…

Q: A water sample was tested for hardness. To titrate Ca2* and Mg2+, a 25.00-mL sample needed 7.39 ml…

A:

Q: Provide an IUPAC name for the structure shown. ball & stick v-+ labels (Use cis/trans terms for…

A: Ball-stick model is used for to show the three dimensional structure of the molecule. White ball…

Q: (Q72) Find AG°rxn_for the reaction: CaCO3 (s) --> CaO (s) + CO2 (g) that can be summarized by the…

A:

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.