Given the following thermochemical equation: 4NH3(g) + 502(g) → 4NO(g) + 6H20(g) AH = -906 kJ Calculate the enthalpy change when 2.50 g NH3(g) is reacted with excess oxygen.

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A: Write the balanced molecular equation  Split electrolytes to their corresponding ions to achieve…

Q: Part A What volume (in mL) of a 0.175 M HNO3 solution is required to completely react with 40.0 mL…

A: Given, Na2CO3(aq) + 2HNO3(aq) →2NaNO3(aq) + CO2(g) + H2O(l) HNO3 solution Molarity of HNO3 solution…

Q: Use the data given below to answer the next three questions. 2 N20 (g) + 3 02 (g) → 4 NO2 (g) AH° =…

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Q: Suppose we titrate 20.0 mL of 0.100 M HCHO2 (Ka = 1.8 × 10–4) with 0.100 M NaOH. Calculate the pH.…

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Q: Compare the experimental and theoretical results of Benedict’s, Barfoed’s, Selliwanoff’s, Bial’s…

A: The experimental and the theoretical results of Benedict’s, Barfoed’s, Selliwanoff’s, Bial’s tests…

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A: K is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: 4. The redox reaction between KMNO4 and Na C2O4 is shown in equation 1 of the Introduction. A…

A: Given,  Volume of Na2C2O4 = 25.0 mL  Normality of Na2C2O4 = 0.75 N Volume of KMnO4 = 14.8 mL…

Q: Calculate the molar solubility of SrC204 in a solution that has a fixed H3Ot concentration of (Kp…

A: Given Ksp of SrC2O4(s) = 5.0*10-8  For H2C2O4, Ka1 = 5.60*10-2 , and Ka2 = 5.42*10-5 .

Q: Question 21 of 25 Submit Consider the equilibrium system described by the chemical reaction below.…

A: Kp = kc (RT)∆ng

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A: We have find out the pH of blood if PCO2 drops to 28 mmHg.

Q: What is the pH of a 0.1000M Ca(OH)2 solution? 9.50 13.30 11.50 12.30 0.70

A: Given: Molarity of Ca(OH)2 solution = 0.1000 M

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A: The compounds given are ethane, 1-pentanol, lithium nitrate and propane.

Q: A piece of metal with a specific heat of 0.57 J g-1°C-1 at 1188 °C is dunked into a beaker…

A: Given,  Mass of water = Volume × density      = 369.7 × 1 = 369.7 g Heat capacity of metal(sm) =…

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Q: (OH)2​(aq)+2HCl(aq)CaCl2​(aq)+H2​O(l) An aqueous solution of Ca(OH)2with a concentration of 0.209 M…

A: Molarity of Ca(OH)2 = 0.209 M Volume of HCl = 25.00 ml Volume of Ca(OH)2= 15.93 ml

Q: The reaction A + B → C + D rate = K[A][B]? has an initial rate of 0.0750 M/s. What will the initial…

A: Given :-  A+B → C+D  rate = K[A][B]2 = 0.0750 M/s  To determine :-  value of initial rate when [A]…

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Q: The pH curve generated by titrating phosphoric acid with sodium hydroxide will have _________…

A: Basicity of acid is  equal to equivalence point.

Q: 1) What is the pH at the equivalence point in the titration of a 29.1 mL sample of a 0.450 M aqueous…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the pH of 0.047 M HNO3?    Is the solution neutral, acidic, or basic?    acidic…

A: • The values provided in the question are:-     i) Concentration of nitric acid solution, [HNO3] =…

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Q: a) Which is more likely to be paramagnetic, Fe(NO,), or Fe(0H), ? O Fe(OH),+ O Fe(NO2),+ 4- b) Why?…

A: a) in Fe(NO2)64- , unpaired electrons = 0 and in Fe(OH)64-, unpaired electrons = 4

Q: 23. Fill in missing reagents and products in the following multi-step synthesis. 1) Br 2) reagent/s2…

A: We have find out reagents and products in multi step synthesis.

Q: CHEMWORK Check all the boxes that are true. (Select all that apply.) O An orbital is the same as a…

A: Atom is defined as  tiny particle which can not be further divided into any other particle. Bohr…

Q: tructure corresponding to each name: (a) N-m ethylaniline; (d) N,N-diethylaniline.

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Q: What ratio of CH;NH2 to CH;NH3* is needed to prepare a pH 9.70 buffer? (Kb for CH;NH, is 4.4 × 10-4)

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: What is the equilibrium constant K for a redox reaction that has E°cell = 1.98 V at 25°C ? Assume 1…

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Q: Radio station KRED in Eureka, California, broadcasts electromagnetic radiation at a frequency of…

A: Given :- frequency of radiowaves = 84.3 MHz  To calculate :- wavelength (in m)

Q: QUESTION 4 Calculate the AH for the reaction: C2H40(g) + H2O(1l) –→ C2H6O2(1) given: 2C2H40(g) +…

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Q: Draw the structure of the intermediate that forms in the first step of the reaction mechanism and…

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Q: How does a balanced equation satisfy the law of conservation of mass?

A: A balanced equation demonstrates the conservation of mass by having the same number of each type of…

Q: Consider the chemical equation 2 A + 3 B ---> 4 C + D The reaction enthalpy is 705 kJ How many…

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Q: Draw the major organic SN1 product for the reaction shown.

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Q: Draw the structure of ea a. an L-aldopentose b. a D-aldotetrose

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Q: onsider the equilibrium system described by ne chemical reaction below. For this reaction, p = 109…

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Q: Barium hydroxide is considered a strong electrolyte. How many moles of OH- are in a 1277mL sample of…

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Q: The solubility of copper (II) fluoride is 0.075 g/100 mL at 20ºC.  What is the solubility product…

A: Given: Solubility of copper (II) fluoride = 0.075 g/100 mL Molar mass of copper (II) fluoride =…

Q: Spectra quality in ATR-FTIR is dependent on sample material. O True O False

A: Option A is correct answer ( True)

Q: Review method used to increase the solubility of a drug under the following headings co solvents PH…

A: Various methods are used to enhance solubility of poorly soluble drug like physical and chemical…

Q: NH2 H3C CH, но H,N., A NH2 6 M H,SO, H3C. H,C H3C. H,C HO, H,C CH, CH CH NaOAc…

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Q: What is the advantage of knowing the factors that affect reaction rates?

A: Answer: Various processes are used in the industry to produce various chemical substances those are…

Q: Using Table 15.2, the amount of water required to saturate 1 kilogram of air at -5°C is about O…

A: The answer is given below

Q: nces to access important values if needed for this question. A student determines that an aqueous…

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Q: Balance the following redox equation. Zn(s) + NO3−(aq) Zn2+(aq) + NO(g)

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