decreases after the occurrence of a spontaneous change. b. The entropy of any substance at temperatures above absolute zero is positive. c. The entropy is zero for a pure, perfect crystal at 0 °C. d.It is possible to determine the standard molar entropy of substances due to the second

Q: The combustion of butane is described by the following balanced equation: 2C4H10+1302 → 8CO₂ +10H₂O…

A:

Q: The amount of hydrogen peroxide in a sample may be determined by reacting it quantitatively with…

A:

Q: 2. The mass of CaCl₂ that needed to prepare 250 mL of 0.2 M solution of Calcium Chloride is equal

A:

Q: O Se Question 30 Which of the following elements has the greatest metallic character? O Mg O AI Ba…

A: Which of the following elements has the greatest metallic character is given below ? Answer is given…

Q: How many grams of N2 are produced when 125 g of NH3 reacts as shown in the following balanced…

A: Given, mass of NH3 = 125 g we know, molar mass of NH3 = 17.031 g/mol => moles of NH3 = mass of…

Q: Draw a table showing the name and the complete structural formula for carboxylic acids with n =…

A:

Q: 1. What is the energy in Cal unit of one photon of microwave radiation with a wavelength of 550nm?…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: NEITEHR OF THE ANSWERS SHOULD BE PSI -60 PLEASE IF YOU PUT THAT I WILL DISLIKE AND If you copy ur…

A:

Q: (a) Sketch the trigonal pyramidal molecule AsCl3 and label its principal rotation axis. (b)…

A: The Principal axis of rotation is C3 which passes through the As atom.

Q: The combustion of butane is described by the following balanced equation: 2C4H₂o +130₂8C0₂ +10H₂0 If…

A: Given,  Combustion reaction:  2C4H10 + 13O2 ---------> 8CO2 + 10H2O  We have to calculate how…

Q: 9. Which of the following statements are correct for ceramic materials? i. They are inorganic…

A: 9.Ceramic materials are inorganic materials consisting of a metal/semimetal and a non metal.…

Q: A 20.0 mL 0.150 M HF (aq) was titrated with 0.125 M KOH(aq) to convert all the initial acid to…

A: In this question, we want to determine the pH of the solution after mixing of acid HF with base KOH…

Q: 2.5 [1]What type(s) of intermolecular forces exist between the following pairs. [2] Draw the…

A: To answer the above question we should have idea about the different type of intermolecular forces.…

Q: When mixed with water, does KOH (s) behave as a: a) weak acid b) strong acid c) weak base d) strong…

A: Acid can be defined as the species that  give hydrogen ions in an aqueous solution. Base can be…

Q: What is the systematic name of Na2[Pt(Cl)2(CN)2]?

A: What is the systematic name of Na2[Pt(Cl)2(CN)2]?

Q: Draw the predicted d -orbital splitting diagrams for each of the following complexes a . HS [Cr(H 2…

A: In the presence of ligand, the degeneracy of d-orbitals disturbed. It will be splitted into two eg…

Q: The mass of a solid piece of iron Fe(s) should be determined by allowing it to react with a solution…

A:

Q: Consider the element Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. (Given: mass of…

A:

Q: What is the pH of a solution that has [OH-] = 2.2 x 10-5 M?

A:

Q: Arrange the atoms in order of increasing atomic size. W, Ag, Fr, Te Arrange the atoms in order of…

A: (1) Given elements are - W , Ag, Fr , Te  The atomic radius of different elements are -  W -…

Q: 1s²2s²2p63s²3p64s²3d104p65s²4d4

A: Here we have to predict the symbol of divalent cation of the following given electron configuration.

Q: A. Uxlotzing agent 5. When the substance lost electrons, it is said to be A. oxidized B. reduced 6.…

A: Since you have posted multiple questions according to guidelines I am solving first three.If you…

Q: As your undergraduate thesis, you developed a colorimetric method for determining a certain metal…

A: A question based on absorption that is to be accomplished.

Q: Which of these salts is correctly matched with the pH of its aqueous solution?   a. CH3NH3Cl, pH >…

A: ->If salt is of strong acid and weak base then it's pH<7 ->If salt is of weak acid and…

Q: 1. (a) In reaching equilibrium, how much heat transfer occurs from 1.2 kg of water at 40°C when it…

A:

Q: Calcium carbonate tablets can be used as an antacid. The label on a bottle of a generic antacid…

A:

Q: What do THR and ILE have that no other amino acids have? O a) an acid group Ob) a base group Oc)…

A:

Q: 1. Compute for c,, cp and 2 for nitrogen gas. Molar mass is 48.0 g/mol. 2. Two moles of an ideal gas…

A: 1. Nitrogen is diatomic molecule, so  Cv will be (5/2)R = 5/2 * 8.314 J/mol.K = 20.79 J/mol.K  Cp =…

Q: Question 24 Which of the following is the electron configuration of Cu O [Ar]4s²3d8 O [Ar]4s²3d64p²…

A: This question belong to d-block of element. Electronic configuration of d- block element. generally…

Q: D Question 13 Which of the following atoms is diamagnetic in its ground-state? Ca OC As Fe

A: The correct answer is given below

Q: Consider the combustion of 1.0 mol propane gas (C3H₂) in excess oxygen in open atmosphere at 25 °C.…

A:

Q: What is the %v/v of a solution made from 176.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A:

Q: 2. For the following reactions, predict the product of the acid-base reaction (clearly showing…

A: In an acid-base reaction the equilibrium lies towards the side having less basic component

Q: A 0.338-g sample of antimony was completely reacted with 0.295 g of chlorine gas to form antimony…

A:

Q: Find the acidity when 5. is added NaOH ml of Calculate the pH value when titrated between 25 ml of…

A:

Q: ring vinegar analysis, a 2.0 ml vinegar sample (% CH,COOH-6.5%) was titrated with 0.2 M aOH, what is…

A: Given that -  Volume of vinegar sample = 2.0 mL  Percentage of vinegar = 6.5%  Molarity of NaOH =…

Q: 5 (a) Define an acid and a base according to Bronsted-Lowry An acid is: A base is: (b) Explain the…

A: we have to define the given terms

Q: A galvanic cell is set-up in the laboratory with a copper anode and an unidentified cathode. Your…

A:

Q: Silver halides are light sensitive compounds that are used in photography. Silver bromide, AgBr, is…

A:

Q: 3-methylhex-3-ene reacts with hydrochloric acid: + H-CI 1. Is this an addition or a substitution…

A: In addition reaction something is added to the the substrate.

Q: The amount of hydrogen peroxide in a sample may be determined by reacting it quantitatively with…

A:

Q: 10. The wavelength in nm unit of light emitted when the electron in a hydrogen atom undergoes a…

A:

Q: Based on the number of mature trees and acres of grass in your lawn, determine how many grams of CO₂…

A: #Q.1: Number of matured trees available = 11 Pounds of CO2 a matured tree consume in a year = 148…

Q: Question 5 What is the maximum number of electrons in an atom that can have the following quantum…

A:

Q: 冰 26.0 cm What is the pressure of the gas contained in bulb C? (Specify units-- your choice of torr,…

A: We know that, atmospheric pressure will be equal to 760 torr that is Patomspheric 1cm =9.9torr So…

Q: Rank the following from lowest to highest entropy. a)Br2 (l), Br2 (g), I2 (g) (b) C4H8 (l), C4H10…

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the…

Q: 8 How many kilograms of sodium are needed to produce 2.24 L of hydrogen collected at 23°C and 92.5…

A: Given-> Volume = 2.24 L T = 23°C = 23 + 273 = 296 K P = 92.5 kpa  = 92.5 × 0.01 atm = 0.925 atm

Q: 1. For each of the following reactions, write down the rate of the reaction in terms of the…

A:

Q: Nickel(II) sulfate (NiSO4) is a chemical compound used to nickel plate metal objects. Calculate the…

A:

Q: Displacement Reactions Involving Metals Reaction Observations (Before mixing) Zn(s) + H₂SO4 (aq)…

A: Please find the below attachments.   Please rate helpful.........................