Hydrazine, N2H4 is used as rocket fuels. The thermochemical equations for the combustion of hydrazine is N2H4 + O2→ N2 + 2H2O ∆H = -622.4 KJ What quantity of heat is liberated by the combustion of 1 g of N2H4 ? Select one: a. 19.42 b. 18.42 c. 16.42 d. 15.42

Q: Reagents a. C6H5CHO b. NaOH, ethanol c. Pyrrolidine, cat. H* j. d. H2C=CHCN e. H30* f. LDA h.…

A: Michael addition : carbanion addition at beta position of α,β-unsaturated carboxylic acid…

Q: REDOX REACTIONS: Work neatly to balance these 10 equations using the half-reaction method. 4. Pb +…

A: We can balance redox reaction by using following steps : First determine oxidation and reduction…

Q: Exercise 24. Which of the following SN reactions will take place? 1. NH2 NH2 2. HO- -F OH- 3. CN + I…

A: 1. NH2- is bad leaving group. Therefore no reaction. 2. OH- is bad leaving group. Therefore no…

Q: Decide If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to…

A: Dipole moments of the molecules

Q: explnation of the mechanism step by step

A: Before proceed to mechanism one must know about the reduction.  Now, What is reduction?  Reduction…

Q: 50.0 g of nitrogen gas (N2) are kept under pressure in a 3.00 L container. If the pressure is kept…

A: Avogadro's Law :-  Under the same conditions of temperature and pressure , volume occupied by the…

Q: A chemist must prepare 500.0 mL of potassium-hydroxide solution with a pH of 13.40 at 25 °C. She…

A:

Q: The system, 2 Hy0(g) + 2 C(g) –> 4 HClg) + O2lg). has a value of 8.00 bar for Kp. Initially, the…

A:

Q: 6. An example of the type of cell described in question 5 can be represented as Mg(s) Mg (0.025 M)…

A: Given-> Mg(s)/Mg2+(0.025M)//Mg2+(1.5 M)/Mg(s)

Q: How was quinine identified/discovered?

A: In 1820, French scientists Peltier and Joseph Caventou discovered a method to extract quinine from…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 338. kJ during a…

A: Enthalpy change(∆H) = 338 KJ Work (W) = +135 KJ (positive because work done on the system)

Q: The standard cell potential (E°cell) of the reaction below is +0.126 V. The value of AG° for the…

A:

Q: What is the daughter nucleus produced when Zn undergoes electron capture? Replace each question mark…

A: ->In electron capture number of proton decreases by one unit.but there is no effect on atomic…

Q: CN H,O* BrMg 3 H-CO-N(CH3)2 (TM) H-CO,H Cl (Leuckart Reaction) Scheme-1

A: The mechanism of the following is as follows:

Q: Explain this phase diagram of copper and nickel briefly

A: A phase diagram represent the variation in the physical state of a substance under different…

Q: I Penodic Table 100. mL of 0.200 M HCI is titrated with 0.250 M NaOH. Part A What is the pH of the…

A: pH :-  The negative logarithm to the base 10 of hydrogen ion concentration expressed in mol/L of a…

Q: A. What is scum? Why would it form in in hard water but not soft water? B. (Synthetic) detergents…

A: Scum : Hard water is having calcium, Mg salts. These salts react with soap and forms insoluble…

Q: For the cell shown, the measured cell potential, Ecet, is -0.3715 V at 25 °C. P(s) | H,(g.0.857 atm)…

A: Given- Ecell =-0.3715V  PH2=0.857atm Concentration of Cd2+=1.00M

Q: Q4. A solution of 0.20 M in monomer and 4.0 x10-3 M in a peroxide inititator is heated at 60°C. How…

A:

Q: 2. In a certain polluted area, the partial pressure of NO gas was 8 pascal. The mixing ratio of NO…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: 5. Which of the following compounds would react the slowest with NaOCH2CH3 in CH3CH2OH. Br Br Br Br…

A: ->In presence of base reaction proceeds through Elimination reaction base can abstract beta…

Q: The rate equation for the reaction A→B + C is expressed in the forms of Rate of disappearance of A =…

A: Given that the reaction is zero order. The rate equation will be Rate = k[A]o Rate = k

Q: that ar the distimgushing p3oresties f acids and ase. Explain the ability of dissolve Some metals…

A:

Q: The data in the table below were obtained for the reaction: A + B → P. Experiment Initial Rate…

A:

Q: At a pH of 7.40, what is the ratio of the molar concentrations of CO2² to HCO3 ? Express your answer…

A:

Q: X Achieve > Students: Register X Assessment - Chem 101 002X…

A:

Q: What are the products of the following saponification reaction? Heat. + NaOH O propanol and sodium…

A:

Q: 2. Use the data given below to calculate the CI-CI bond energy.( 4HC(g) + O:(g) 2H,0(g) + 2C(g) AH…

A:

Q: 6. In acidic soils, dissolved Al3+ undergoes a complex formation reaction with S0,2- to form…

A:

Q: If 17.6 mols of Ar gas occupies 87.30 L, how many mL would occupy 60.5 mol occupy under the same…

A: Given: Initial volume of gas = 87.30 L Initial moles of gas = 17.6 mol Final moles of gas = 60.5 mol

Q: The decomposition of N2O5 is a first-order reaction with a rate constant of 0.420 min-1. If the…

A:

Q: In a certain zinc-copper cell, Zn(s) + Cu2*(aq) – Zn2-(aq) + Cu(s) the ion concentrations are [Cu2*]…

A: Th Ecell of the cell reaction can be calculated by using Nernst equation as follows -

Q: ny milliliters of a 0.275 M NaOH solu

A:

Q: Consider the following galvanic cell: Agls) | Ag"(3,0 x 10“ M) || Fe³"(1.1 × 10³ M), Fe²"(0.040 M) |…

A: The give cell notation is            Ag(s)/Ag+(3.0×10-4 M)   //      Fe3+(1.1×10-3 M), Fe2+(0.040…

Q: e newman projection. (2) Rotate the carbon #1 to 60 degree for 6 s until a 360 degree rotation was…

A:

Q: 2. The following data was obtained from the reaction: NH4 + (aq) + NO2 (aq) → N2(g) + 2H2O(1)…

A:

Q: Set up a Hess's law cycle, and use the following information to calculate AH, for aqueous nitric…

A: Hess's law states that total enthalpy of formation in a chemical reaction is same whether a reaction…

Q: What is the IUPAC name of the substance shown in the following line drawing?

A: IUPAC nomenclature

Q: 1. Et NH 2. ACONH4*

A:

Q: Supply a balanced chemical equation of sodium bisulfite with bromine.

A: 1) The balanced chemical equation of sodium bisulfite with bromine is :- Br2 + 3NaHSO3 = 2NaBr +…

Q: Which of the following is not a method used to protect iron objects from corrosion? O Apply a…

A: .Corrosion occurs due  to the oxidation of material by oxygen  and moisture.

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

A: Given data :

Q: Azulene, an isomer of naphthalene, has a remarkably large dipole moment for a hydrocarbon (µ = 1.0…

A:

Q: The natural catalyst of the organisms is called? Select one: a. Inhibitor b. Poison c. Enzymes d.…

A: Enzymes act as a natural catalyst in the living system

Q: 4. Complete the following acid-base reaction and predict the position of the equilibrium: H3C-…

A: Acid and base undergo neutralization reaction . Acid lose Proton and that proton is accepted by…

Q: What is the value of the equilibrium constant for the reaction. 2 Agis) + Pt2 (aq) Ag (aq) + Pt(s)…

A:

Q: The reaction 2NO(g) + Cl2(g) ---> 2NOCl(g) was performed and the following data obtained: Is…

A: Ans.

Q: After constructing a van't Hoff plot from the experimental data, a student determines the equation…

A: We would use van't Hoff equation and compare it would given straight line equation.

Q: 34 What do you call the slowest step that determines how fast the overall reaction proceeds? Select…

A:

Q: How many Kilojoules of heat energy is required to heat a 200 g block of ice at -10 C melt it forming…

A: Concept:  Formula used:  q = mC∆T  Where  q = heat  m = mass  C = Heat capacity  ∆T = temperature…