CH4 (9) +20₂(g) → CO₂(g) + 2H₂O(l) H-891 kJ a. Calculate the enthalpy change if 2.01 g methane is burned in excess oxygen. Enthalpy change = kJ b. Calculate the enthalpy change if 1.72 × 10³ L methane gas at 748 torr and 25°C is burned in excess oxygen. Enthalpy change = kJ

Q: 1. Classify the following if either Aromatic or Not aromatic a. a b. + d. e. ZI H₂

A:

Q: The results in the table below were obtained from the analyses of Mg2+ content in an orange juice…

A: A question based on tools in analytical chemistry. A set of data about AAS results for Mg2+ ion is…

Q: Complete and balance the molecular equation for the reaction of aqueous copper(II) chloride, CuCl₂,…

A: Answer:- This question is answered by using the simple concept of writing the chemical equation for…

Q: . If I only have 450 g of blue copper sulfate, how many Liters of a solution can I make if I want to…

A:

Q: At 250°C and 1 bar, phosphorus pentachloride PCl5 partially decomposes to phosphorus trichloride…

A:

Q: 1. You have a container filled with a gas at 25°C and 1 atm. Explain why the average velocity, and…

A: Dear student, we are authorised to solve only first three subparts of a question. Please post rest…

Q: The concentration of hydroxide ion in an aqueous solution at 25°C is 3.5 × 10⁻⁴ M. What is the…

A: Given, Concentration of hydroxide ion = [OH-] = 3.5 × 10-4 M Concentration of hydronium ion = [H3O+]…

Q: Partial Pressure 2, 1. A chemist runs a reaction that generates O₂ N₂ and H₂, in a 1.57 L vessel at…

A: To determine if the vessel explodes or not, we have to calculate the total pressure

Q: Centr 3. What is the molar concentration of a 3.50 L. solution that contains 35.0 grams of NaOH…

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

Q: Balance the combustion reaction in order to answer the question. Use lowest whole-number…

A:

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 548.0 nm. (c…

A: Given :- wavelength of radiation = 548.0 nm  c = 3.00 × 108 m/s  To calculate :- frequency of…

Q: Under certain circumstances, carbon dioxide, CO₂ (g), can be made to react with hydrogen gas, H₂(g),…

A:

Q: A 10.00 gram gas mixture contains Nz and CO2. If 2.00 grams of the mixture is Nz and the total…

A: Given :-  Amount of mixture of N2 and CO2 = 10.00 g  Mass of N2 in mixture = 2.00 g  Total pressure…

Q: The following thermochemical equation is for the reaction of H₂O(1) to form H₂(g) and O₂(g).…

A:

Q: Which one of the following salts, when added to water, would decrease the pH? O CSCN O LICH3COO O…

A: Answer:- This question is answered by using the simple concept of dissolution of salt in water and…

Q: CHM 2410Z - Organic Chemistry I Lab 2) Consider the following molecules and choose the two…

A:

Q: 2. Dr. Dahm is attempting to make nitrous oxide so that he can go drag racing in his Toyota Camry…

A:

Q: Draw the major product from this reaction. Use wedge and dash bonds to indicate relative…

A: RCO3H is peracid which is used for the epoxidation of alkene. If a bulky group is present already in…

Q: 20. What is the pH of the resulting solution when 0.456 g of sodium acetate are dissolved into 1 L…

A: 20. 0.456 g of sodium acetate are dissolved into 1 L of water at 25 °C . The Ka of CH3COOH is 1.8…

Q: A patient weighing 120 lb was administered 2.1 g of a drug supposed to be dosed at 30 mg/kg. Was the…

A: Concept based on drug dosed to the patient and identify the dose as correct or overdose or…

Q: The mechanism proposed for the oxidation of iodide ion by the hypochlorite ion is shown below. Step…

A:

Q: The equilibrium constant, Kp, for the following reaction is 55.6 at 698 K: H₂(9) + I₂(9) 2HI(g)…

A:

Q: To complete a dot diagram for an ion. Cations... A would gain enough electrons to have a full…

A:

Q: Write a balanced net ionic equation to describe the following: (a) the oxidation of U4+ to UO2²+ by…

A: Here we have to balance the following given redox reaction . It can be balanced by ion- elctron…

Q: on 2 of 18 O Macmillan Learning Balance the combustion reaction in order to answer the question. Use…

A:

Q: Elemental SS reacts with O2O2 to form SO3SO3 according to the reaction 2S+3O2→2SO3   What is the…

A: Given -> 2S + 3O2 ---> 2SO3 Weight of S = 7.43 gm

Q: The following mechanism has been proposed for the formation of N₂ and H₂O from H₂ and tager mode…

A: Note! As per bartleby guidelines, we can answer only first three subparts (unless not mentioned…

Q: Which of the reactions are exothermic? 2 Mg(s) + O₂(g) → 2 MgO(s) + heat NH, (g) + HCl(g)NH₂Cl(s) +…

A:

Q: 4. Dr. Dahm has 15.0 grams of Fe that he places into 150 mL of 8 M HNO₂ (aq). The reaction is done…

A:

Q: A particular saturated solution of PbI2(s) and [Pb2+] = 5.0 x 10-3M and [I-] = 1.3 x 10-3 a. What is…

A:

Q: write strucutre  of methanol

A:

Q: Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction…

A: ♧ Excess hydrochloric acid aq and zinc sulfide are combined .♧ Aqueous solution of potassium…

Q: Given the reaction: 2 H2 + O2 ---> 2 H2O, if 2.8 mol H2 and 7.2 mol O2 are reacted, (a) how many…

A:

Q: hi, can you reexplain the  0.6149 g * 1 mol KHP204.22 g= 0.003011 mol KHP Moles of KHP(KHC8H4O4)…

A: Formula to calculate moles is :  Moles = Mass / Molar mass

Q: - [ OH OH

A: Gilmann reagent react with acid chloride to give ketone Carbonyl compounds react with HCN to give…

Q: Phenylacetic acid (C6H₂CH₂CO₂H) is a weak monoprotic acid with K₂ = 4.90 x 10-5. What is the pH of a…

A: pH is equal to negative logarithmic of hydrogen ion concentration

Q: The equilibrium constant, Kc, for the following reaction is 4.53x10-5 at 533 K. NH4CI(S) ? NH3(9) +…

A:

Q: Give the full electron configuration for sodium (Na). electron configuration:

A: The subshell with minimum energy is filled up first and when this obtained maximum quota of…

Q: Calculate the wavelength (in nanometers) of light with energy 1.32 x 10^-26 kJ per photon

A:

Q: For the equilibrium 2IBr(g)⇌I2(g)+Br2(g)2IBr(g) Kp=8.5×10−3 at 150∘C. Part A) If 2.5×10−2 atmatm of…

A:

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A:

Q: solution of 275 mL of 0.725 M hydroiodic acid reacts with excess magnesium in single  displacement…

A:

Q: The following mechanism has been proposed for the formation of N₂ and H₂O from H₂ and nitrogen…

A:

Q: The equilibrium constant, Kp, for the following reaction is 55.6at 698 K: H2(g) + I2(g) 2HI(g)…

A: Given is, Kp= 55.6  Initial pressure= 1.33 atm  H2 + I2 -----> 2HI  Calculate pH2 =?…

Q: What is the hybridisation on the atom labelled 3 in the structure below:

A:

Q: Calculate the concentration of an anthracene solution which produced a fluorescence intensity (1) of…

A:

Q: Lieber and co-workers used AFM to measure the adhesion force arising from the contact of CH3 groups.…

A: To calculate the interaction force resulting from the contact of two individual CH3 groups, we have…

Q: Gaseous methane CH4 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and…

A:

Q: Which is not a plausible organic product of the reaction below? ď A H₂O B ? C D

A:

Q: Name the ions. Spelling counts. Na+: Mg2+: CIT:

A: