Use the following equation to answer the stoichiometry and energy change problem below:  2H2 + O2 --> 2H2O + 245kJ How many kilojoules of heat are produced when 23.0g of O2 react with hydrogen?

Q: The enthalpy of vaporization of Substance X is 21.0 Round your answer to 2 significant digits. atm…

A: Enthalpy of vaporization (∆Hvap) = 21.0 kJ/mol = 21000 J/molVapour pressure (P)Temperature (T)P1 =…

Q: For Practice 3.16: Determine the mass of oxygen in a 7.2 g sample of Al2(SO4)3. What is the molar…

A: Mass of sample of Al2(SO4)3 =7.2 gramWe need to calculate the mass of oxygen in 7.2 gram Al2(SO4)3…

Q: Draw an approximate titration curve of glycine. Label the approximate isoelectric point of the…

A: At the isoelectric point, no net charge exists on the peptide. It exists in an overall neutral…

Q: Show a bonding picture for the molecule given below: 70 a. Show the orbital overlapping forming a…

A: Sigma bond( ) is formed by the head-to-head overlap of atomic orbitals.Pie bond () is formed by the…

Q: redox reactions: did a reaction occur with Cu(NO3)2 and zinc and Ag?

A: The reaction in which oxidation and reduction takes place is called redox reaction.Oxidation: In a…

Q: A 1.00 gram sample of anhydrous cerium sulfate was dissolved in water. Barium nitrate solution was…

A: A precipitation reaction is characterized by the formation of an insoluble solid when a cation and…

Q: onsider an ionic compound, MX₂, composed of generic metal M and generic, gaseous halogen X. • The…

A: The objective of this question is to calculate the lattice energy of the ionic compound MX₂ using…

Q: Which of the molecules below is the expected major product of the following reduction? H₂C=CH₂ H₂…

A: The reduction with H2 and lindlar's catalyst which is Pd-CaCO3 is very selective.This reagent…

Q: 2) -OH phenylacetic acid K = 5.2x10-5 OH propionic acid pK, = 4.87 Using the information above, draw…

A: pKa  = - log Ka            =  - log (5.2  * 10-5)          = 4.28

Q: Calculate the total pressure in a container containing 752 torr of N₂, 1.56 atm O₂, and 7.80

A: The objective of this question is to calculate the total pressure in the container.

Q: + HI 1) NaOH/H₂O 2) dilute HCI Select to Draw + Select to Draw Q

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Draw the structure(s) of the major organic product(s) of the following reaction. H MgBr 1. Dry THF…

A: We have given the organic reaction and we have to find out the major product of the reaction.

Q: Carbon dioxide (CO₂) in the air dissolves in distilled water. The CO₂ then reacts with water…

A: Carbon dioxide is dissolved in water and produces carbonic acid according to the…

Q: For a given reaction: C + D → products experimental data show that when [C] is doubled the rate…

A:

Q: 2) You can list the four reactions here 1) 3) Starting with benzene, suggest a route (three or four…

A:

Q: Experiment 1: Suppose a student repeats the experiment, but adds 25 g of sodium bicarbonate to the 6…

A: Sodium bicarbonate is NaHCO3 and hydrochloric acid is HCl. Sodium bicarbonate is a weak base and…

Q: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10Hg, molar mass =…

A: Given:Mass of napthalene (C10H8) = 78.8 gMolar mass of (C10H8) = 128.16 g/molDensity of benzene =…

Q: Draw the structure of the molecule that would result from diazotizing Primuline and coupling the…

A: A diazonium compound is prepared by reacting a primary aromatic amine with NaNO2 and HCl. The…

Q: Given the polymerizations below: i) balance the reaction, ii) draw the final repeat unit including…

A: A question based on introduction to polymers. Two equations are given for which the follow-up…

Q: Draw the structure for the conjugate base of the acid shown. Be sure to include all lone pairs and…

A: The ionic species formed when there is a removal of acidic hydrogen from an acid is called the…

Q: X-Y Using any initiator, (I. is fine) show all of the steps involved in bonding TWO vinyl chloride…

A: A polymer is a large molecule that is formed by the repetition of small units called monomers, and…

Q: Draw the major organic product of each of the following reactions, early necessary. Indicate whether…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: B. Draw the major product expected form each of the following reactions 11. HO Br Br Mg, ether Mg,…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.400 mol of liquid…

A: The objective of this question is to calculate the vapor pressure of a solution at a given…

Q: B. C. 13) For each of the following pairs of hexane depictions, assess the relative energy of each…

A: The aim is to compare hexane depictions in the given pairs and to identify the one with the least…

Q: List all possible values of the angular momentum quantum number / for an electron in the M (n=3)…

A: In the given question->Shell -> M shell Principle quantum number (n) = 3

Q: Draw the enantiomer of the following compound: НО НО OH HIN х

A: Enantiomers are a type of stereoisomer, which implies they have the same molecular formula and atom…

Q: Which is/are optically inactive? Н. H ОН CH3 I CH3 OH Н НО CH3 LOH H CH3 II Н Н Н CH₂CH3 -OH -Н -ОН…

A: The objective of this question is to find the optically inactive compound from the given compounds.

Q: Which Grignard reaction shown could be used to prepare the alcohol showr 1 OH 1. MgBr Ô 2. H2O OH…

A:

Q: Draw the major product of the following intramolecular reaction. Н3С- H3C ОН CH3 CH3 H₂SO4

A: Removal of a water molecule from the alcohol results in the formation of alkene as a product and…

Q: Vanadium crystallizes in a body-centered cubic lattice, and the length of the edge of a unit cell is…

A: The edge length of the body-centered cubic lattice of vanadium is .The molecular weight of vanadium…

Q: 2. Identify the most acidic compound by labeling it with "M" and the least acidic compound with an…

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

Q: Calculate the vapor pressure of a solution made by dissolving 11.1 g Ca(OH)2 in 1 102 g of water at…

A: mass of Ca(OH)2 = 11.1 gmolar mass of Ca(OH)2 = 74.09 g/molmass of water = 100 gmolar mass of water…

Q: Fill the table with following categories for the H1 NMR of liquid unknown organic compound which is…

A: Given is a 1H-NMR spectra of two compounds:a. Propiophenoneb. CoumarinTo analyze the given…

Q: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

A: The freezing point of the solution is the temperature at which the liquid state of a substance…

Q: consider reaction  2SO2 (g) + O2 (g) --> 2SO3 (g) if 231.4 mL of SO2 reacts with 127.5mL of O2…

A: Answer:Limiting reagent is the reactant that exhausted first in chemical reaction and decides the…

Q: a. H3C HgC OH H3C- .CH لا H b. H3C CH3 H .CH3 OH لم ہیں ملے e. .CH h. CH3 H3C. NH3 Hol CH3 f CH CH3…

A: Given are organic compounds. Given compounds contain different types of Functional groups. Let's see…

Q: What is the pH when 12.5 mL of 0.100 M NaOH are added to 50.0 mL of K₁₁ =1.42×10-³; K₁2 =2.01×106 al…

A: The objective of this question is to calculate the pH of a solution when a base (NaOH) is added to…

Q: H3C. .CH3 NH CI CI HCI

A: an acid is a species which donates Proton while a base accepts proton.An acid after donating Protons…

Q: 4. Draw a chemical reaction scheme that includes an arrow -pushing mechanism for each of the…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: P-32 is an unstable isotope of phosphorus that has a half-life of 14.29 days. Atoms of P-32undergo…

A:

Q: Suppose an atom with its nucleus at the origin has an electron in a 2p, orbital. Complete each row…

A: Answer:Orbital is a space around the nucleus in which probability of finding an electron will be…

Q: Use the name of the enzyme and any coenzyme to predict the products of this reaction. OH NAD 2- LOPO…

A: To draw the structure of product in the given biochemical transformation

Q: A. B. C. D. E. 1- 1 = trans; | = cis; 11 = trans 11 = cis 1 = trans; II = cis | = cis; II = trans…

A: In cyclohexane of both the substituents points in the same direction either upward or downward are…

Q: 1. a) b) Predict the major organic product of the following reactions: c) H₂C H Br 1. Br 1. Mg…

A: All the three reactions are addition of Grignard reagent to carbonyl compound.Grignard reagent is…

Q: Recalling that for a balck body, R(v) = ((2 pih)/(C^2)) ((V^3)/(e^ (hv/kt )) - 1) compute the value…

A: The objective of the question is to calculate the value of R(vmax) for a black body emitter with a…

Q: 1.) For each reaction, determine the best set of reagents to use to perform the transformation. b.…

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Q: Draw the product of the reaction shown below. Ignore inorgani byproducts. 1. KMnO4, H2O, heat 2. Ht…

A: When aromatic side chain has at least one C-H bond then KMnO4 reagent oxidise it into arboxylic…

Q: What is the Molarity of a solution of NaCl in water, if the mole fraction of NaCl is 0.111? The…

A: Given,mole fraction of NaCl = 0.111density of the solution = 1.19 g/mL

Q: 6. Which of the following is a wedge and dash structure for the following Newma projection? CH3Y tot…

A: A wedge-dash projection is a way of representing the three-dimensional arrangement of atoms in a…