Explain how entropy changes in the process of flambéing (combustion of ethanol). Be sure to include physical states and changes in temperature.

Q: 2. How much heat is lost when a 640 g piece of copper cools from 375 °C, to 26

A: When a solid substance is cooling then heat is lost . It can be determined by the following formula-...

Q: What reagents would you use to complete the following reactions? он он 1.) 2.) 3.)

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: 13. Given the following thermochemical equation: Mg + Cla) MgCl2(3) 642 kJ + What is the AH for the ...

A: As 642kj energy is evolved in the product side. Therefore, this is an example of exothermic reaction...

Q: What mass of zinc sulfide 19 5. The addition of concentrated hydrochloric acid to manganese (IV) oxi...

A: Given: Mass of HCl= 4.76×10-2g Mass of MnO2 = excess

Q: Answer the questions below. Write the charge using the format +1 or -1. You must put a positive or n...

A: Here, we have to determine whether boron will lose or gain electrons. Also, we have to find the numb...

Q: sample of oxygen is collected in a 175 mL container over water at 15.0C. If the barometer reads 752....

A:

Q: 2. A convenient way of converting hydroxide concentration to pH is -log 10-14 pH+ pOH -log 10-14 = p...

A:

Q: The atmospheric oxidation of nitrogen monoxide, 2NO(g) + O2(g) 5 2NO2(g) was studied at 184°C with i...

A: Given-> 2NO(g) + O2(g) -->2NO2(g) Initial pressure of NO =1.000 atm Initial pressure of O2 = 1...

Q: Draw a bar diagram on your sketch paper based on the table below and determine the non-carbon hardne...

A:

Q: Electrophilic addition of HI proceeds with the same mechanism as HCI and HBr. New methods for the hy...

A: At high temperature, addition of HI is thermodynamically controlled. Under thermodynamic condition 1...

Q: Explain the process of new bicarbonate formation and the role of the ammonium in response to the aci...

A:

Q: An aqueous solution contains 0.22 M hydrocyanic acid. One Liter of this solution could be converted ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: Predict the product of reaction shown. fuming H,SO, SO,H so, он IV O II

A:

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce ammon...

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is gi...

Q: A Fisher chemical bottle labels a H2SO4 solution with 2 N, what is the molar concentration of this a...

A: Given, Normality of H2SO4 solution = 2 N Molarity of H2SO4 solution = ? The relationship between nor...

Q: Write Short paragraph about heterogeneous coloidal solution.

A: A colloid is a heterogeneous mixture in which dispersed particles have an intermediate size of solut...

Q: Which part of the instrument perform the given function                                            ...

A: Mass spectrometers : It is a powerful technique  which is used to identify the unknown compound in t...

Q: Sample: 4-cyclohexene-cis-1,2-dicarboxylic acid cast film 100 - 80 60 Analyze the IR Spectrum and HN...

A: Give IR spectrum:

Q: DQuestion 3 How many non-bonded electron pairs are in the Lewis structure below? 02 06 08 04

A: 4 non-bonded pairs are in the Lewis structure of CO2.

Q: 1.1 equivalent of NaNH2 2. CH3CH,CH,CH,Br 3. H2, Lindlar's catalyst 4. Br2

A: Terminal Alkyne has acidic hydrogen which can abstracted by strong base like NaNH2 and form nucleoph...

Q: B. Calculate the pH after 17.50 mL of NaOH is added to 35.00 mL of acetic acid using the concentrati...

A:

Q: Acid rain harms both living and nonliving things in a variety of ways. What solution/s can you propo...

A: Acid rain, as described in the question, is harmful for both  living and nonliving things in a varie...

Q: Identify the major product of the following reaction. Br2 (1 mole) FeBrg, heat Br Br -Br Br -Br „Br ...

A:

Q: You need to create 25 mL of a 1% aqueous solution of a sweeteners.  How many grams of solute do you ...

A: A 1% solution is weight/volume (w/v%) . The is a common method to represent concentration of a solut...

Q: How much energy, in units of J, is required to heat 67.5 g of solid acetone from -145.3°C to -101.0°...

A: Heat is required when a substance is heating. It can be determined by following formula-  q = mc∆T  ...

Q: Find the Correlation Chart for Functional Group Assignments in Infrared Spectra Compound: diphenylm...

A:

Q: The following are the goal of chemical spearation process, EXCEPT?      isolation of the analyte ...

A: Goal of chemical seperation process:

Q: Sort the descriptions. Standard Gibbs free energy of reaction Gibbs free energy of reaction No Answe...

A: The answer is as follows:  

Q: Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

A:

Q: Given the following concentrations of aqueous ions as well as their atomic weight or molecular weigh...

A:

Q: 7. Nitrogen gas is produced in an automobile air bag. It is generated by the decomposition of sodium...

A: Reaction is given  2NaN3 (s) -----> 3N2 (g) + 2Na(s) since 2 moles of NaN3 Is required to produce...

Q: - Identify the purpose of each test in the space provided. a) Benedict’s test b) Seliwanoff's test c...

A: Since you have posted more than one question, we will solve only first question for you. If you want...

Q: 3. When 0.118 g of Zn(s) is combined with enough HCl to make 52.3 mL of solution in a coffee-cup cal...

A:

Q: Predict the products for each of the following reactions and determine which product will predominat...

A: At low temperature kinetic product is obtained when electrophilic addition reaction takes place in c...

Q: We titrated a 25.00 mL water sample with 0.1250 M HCI. The second endpoint at pH 4.5 was achieved af...

A:

Q: A water sample was tested for BOD5, which was determined to be 50 mg/L. Which of the following descr...

A: BOD stands for Biochemical Oxygen Demand.  This is a biological method, used for measurements of tot...

Q: Propose a synthesis of the compound shown below starting with benzene and any other acydic carbon co...

A:

Q: The molecular weight of sucralose is 397.64 g/mol and that of steviol (the sweetener in some Stevia ...

A: Given data  :  Molecular weight of sucralose = 397.64 g/mol Molecular weight of steviol = 318.46 g/m...

Q: Aniline, C6H7N (molar mass = 93.13 g/mol), is a weak base that is used as a precursor in the synthes...

A:     924 mg of aniline is dissolved in enough water to make a total volume of 1.00 L. pKb of aniline ...

Q: clear handwritten Solution) Give order of bond polarity of the given compounds and explanation of t...

A:

Q: lon exchange is used to remove water hardness of a well water, which has a total hardness of 450 mg/...

A: The last option will be correct here  150 mg/L as CaCO3

Q: 1. Predict the effect of each of the following conditions on the calculated concentration of NaOH. E...

A: A question based on analytical process that is to be accomplished.

Q: A chemist needs to create a 50% HCI solution. (HCI is hydrochloric acid.A "50% HCI solution" contain...

A:

Q: What is the order of the reaction A → B given the plot shown? 400 A) Zero 300 B) First 200 C) Second...

A:

Q: Which of the following processes have a AS > 0? O CH3OH(1) – CH30H(s) O N2(g) + 3 H2(g) – 2 NH3(g) O...

A:

Q: Calculate the concentrations of all species present (other then water) in an aqueous solution of 0.2...

A: Sulfurous acid is a diprotic acid. It dissociates two times in an aqueous medium.   

Q: - Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

A: We have to draw the structural & geometrical isomer  of a diene having Molecular formula C5H8

Q: CHEMWORK Calculate the change in the entropy of the surroundings and the change in the entropy of th...

A:

Q: What iŜ MALDI scopy 2 Preedict the speetto mething maes fragmendastion patern of Ira cco)ia & ration...

A: this problem based on inorganic mass spectrospy 

Q: 2. Propane is the fuel used in outdoor gas grills. The thermochemical eqn for the combustion of prop...

A: Combustion :- The process of burning a substance in excess of air or oxygen is known as combustion I...