Consider the reaction 2H₂(g) + O₂(g)—2H₂O(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.63 moles of H₂(g) react at standard conditions. AS surroundings J/K = ||

Q: When a monosaccharide is oxidized by an oxidizing agent such as Benedict's reagent, a sugar acid is…

A: Oxidation:  Addition of oxygen or removal of hydrogen is called oxidation  Oxidising agent : The…

Q: Write the structure(s) for the aldehyde(s) and/or ketone(s) that undergo an aldol addition reaction…

A: Aldehyde or ketones on reaction with base gives beta hydroxy aldehyde or ketone as final product.…

Q: What is the wavelength of a photon having a frequency of 49.3 THz? 1 THz = 1015 Hz

A:

Q: What is the molar solubility of Fe(OH)3 in a solution buffered at pH = 4.29? See the Solubility…

A:

Q: For the following reactions, the AH' rxn is not equal to AH't for the product except for A) 2CO (g)…

A: Enthalpy of formation: When one mole of the substance is formed by its constituent elements in its…

Q: Ammonium perchlorate is a powerful solid rocket fuel, used in the Space Shuttle boosters. It…

A:

Q: Consider the following equilibrium: Cu²+ (aq) + 4NH3(aq) Cu(NH3)4²+ (aq) (Kf = 4.8e+12) A solution…

A:

Q: What (R) or (S) stereochemistry is proper for the following molecule? 1 H3C. Cl H H Br 5 CH₂CH3 4 A)…

A:

Q: Elemental phosphorus exists in a few different allotropes, two of which are listed below. White…

A: To answer whether white or black phosphorus has a high melting point and explain the reason.

Q: 6.) Rank the following compounds in order of increasing pK, values, and explain your choices in…

A: Acidic nature of a compound decides it's pKa value. More acidic the compound, lower will be its pKa…

Q: Laparoscopic surgery involves inflating the abdomen with carbon dioxide gas to separate the internal…

A:

Q: || CH,–O–C–(CH,)–CH=CH—(CH,)–CH, 0 CH–0–C—(CH2)CH, CH,–0–P−0–CH,—CH,–NH, O

A: Given  compound has various components.    Let's see structures of each options so we can easily…

Q: This question had two parts a and b, only the following is given to solve. A solution of HClO 4 , a…

A:

Q: Set #1: CH3CH₂CH₂CCH3 a Set #2: CH3CH₂CH₂CH3 CH3CH₂CH₂CH₂CH CH₂CH2CH₂CH₂ b Shown are 4 isomeric…

A: Different types of peaks in NMR shows different environment around that atom.  Protons with same…

Q: What is the pH of 50 mg/ml solution penicillin VK ( potassium salt mw=389, pka = 2.8)?

A: Answer:- This question is answered by using the simple concept of calculation of pH of the salt of…

Q: What is the best reagent for this transformation? H₂C H₂C a) (CH3CH₂CH₂)2Culi d) BrCH-CHCH3 Oc O Ob)…

A:

Q: Draw a diagram of the linear and ring structures of ribose. Show the biochemical mechanism of…

A: Ribose - 5 carbon sugar found in RNA .

Q: Possible Lewis Structores for the isocyanate ion include (Note, you will have to deduce the number…

A: The question is based on isocyanate functional group and the Lewis structure. We have to choose the…

Q: Ammonia reacts with O₂ to form either NO(g) or NO₂(g) according to the following UNBALANCED…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: a weak Dase fal cigarette smoke. Pyridine ionizes in water as follows: C5 H5N(aq) + H₂O(1) C5H5NH+…

A: Pyridine is weak base hence it dissociated feabily in aqueous solution

Q: 12) What mass of silver can be plated onto an object in 67 minutes at 8.70 A of current? Ag'(aq) + e…

A: Given ->  Time (t) = 67 minutes = 67 × 60 seconds= 4020 s  (1minute = 60 seconds)  Current (i) =…

Q: 1.0 equiv H₂ Pd/C Modify the pre-drawn structure. Select Draw Rings C H More Erase

A: Alkenes(compounds containing >C=C<) are reduced when they are treated with H2 in presence of…

Q: What will be the carboxylate ion produced when 3-methylhexanoic acid ionizes in water? مله O…

A:

Q: Part 1: The structures of carbon disulfide and carbon dioxide are shown below with their boiling…

A: Boiling point - temprature at which vapour pressure of a liquid is equal to the atmospheric…

Q: A chemist prepares a solution of sodium hyposulfate (Na₂S₂03) by measuring out 15. µmol of sodium…

A: This question belongs to the solutions. We need to find the concentration of the solution mentioned…

Q: 4-44 Draw the important resonance forms of the following free radicals. (a) CH₂=CH-CH₂ (b) (d) (e)…

A:

Q: Today I ran 9.40 x 106 millimeters (mm). How far did I run in miles?

A: Given that, Distance ran = 9.40×106 mm We need to convert this into miles

Q: A Lewis structure is a two-dimensional representation of a molecule that does not necessarily show…

A: Since, According to the VSEPR theory, steric number (which represent hybridization) is the…

Q: calculate the energy absorbed when an electron in a hydrogen atom undergoes a transition from n=1 to…

A: Rh is Rydberg constant which is equal to 1.0975 × 10^7

Q: If dissolving 0.5175 g of KHP in 50 mL of water requires 34.90 mL of NaOH solution, what is the…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Thus,

Q: What is the concentration of manganese ions in a saturated solution of manganese sulfide? M…

A:

Q: Consider the following equilibrium: Cu²+ (aq) + 4NH3(aq) Cu(NH3)4²+ (aq) (Kf = 4.8e+12) A solution…

A: Given Reaction = Cu2+(aq)   +    4NH3(aq)   ⇔  Cu(NH3)42+(aq)   Kf = 4.8 * 1012Volume of CuSO4…

Q: calculate the wavelength of light in nanometers that corresponds to a frequency of 7.25 x 10^14 Hz

A: Given:  Frequency of light, v = 7.25 × 1014 Hz  Formula used:  Wavelength of light = speed of light…

Q: How will 100mM Tris-Cl buffer be prepared?

A:

Q: Mono addition of HBr to unsymmetrical dienes generally produces four products - two 1,2-addition…

A: A diene is a conjugated diene that reacts with one mole of hydrogen bromide and forms allylic…

Q: A sample of argon gas occupies a volume of 8.73 L at 63.0°C and 315 torr. If the volume of the gas…

A:

Q: What is the coordination number, hybridization, and geometry for the complex ion, [Sn(OH)3]¯? The…

A: we have to calculate the coordination number, hybridization and geometry of the given ion

Q: d) Write the half reaction that occurs at the cathode. (Use the coefficients as they appear in the…

A: We have to look into the reduction potential of both Zn and Fe to make sure which will be going to…

Q: Classify each chemical compound listed in the table below. compound H₂SO4 Mg(BrO3)₂ Nal HI type of…

A: Acids- Those compounds which gives H +  ions  in their aqueous solution are known as acids. For…

Q: Which organic compounds is not a constitutional isomer of octane? 2,2-dimethyl hexane…

A: Constitutional isomers are the structures having same molecular formula but differ in arrangement of…

Q: Calculate the mass of iron(III) oxide (Fe₂O3) that contains a million (1.0 × 106) oxygen atoms. Be…

A:

Q: Two sets of ionizations are shown in the tables below. Complete the tables by ordering each set of…

A: In all given reactions, atoms are losing electron. That means there is ionisation of electron . In…

Q: Which of the following acids is the strongest? The acid is followed by its Ką value. HCIO2, 1.1 x…

A:

Q: A titration was performed where a strong acid, HCI, was titrated with a strong base, KOH. Use the…

A: a) The equivalence point is that point in titration where acid and base are completely neutralized.…

Q: Using the data in the table, determine the rate constant of the reaction and select the appropriate…

A:

Q: In chemistry, the pH of a solution is a measure of the acidity or alkalinity of a solution. Water…

A:

Q: Part B Write equation, using condensed structural formula, for the complete hydrogenation of the…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: From the equilibrium concentrations given, what is the Kb value for NH3?  [OH−] = 3.1 × 10−3 M;…

A: In an aqueous solution ammonia dissociates as follows: NH3 + H2O  ⇌ NH4+  +  OH-

Q: Find all errors in this table. Assume all formulas (left column) are correct. If the mistake is a…

A: Bond pair electrons - Geometry  2- linear  3- Trigonal plane  4- Tetrahedral 5- Trigonal bipyramidal…

Q: Provide the products of the following ester acid hydrolysis reaction. O + H₂O O sodium propanoate…

A: In acid hydrolysis of ester we get back carboxylic acid and alcohol.