A 1.0 L sample argon gas at 20.0 C was cooled until it occupies a volume of 0.30 L. What is the new temperature of the gas assuming that the cooling process was done at a constant pressure?

Q: 4Al(s) + 3O2(g) ⟶ 2Al2O3(s)    ΔH = -3,351.4 kJ What is the heat flow when 89.23 grams of aluminum,…

A:

Q: With reference to the following reaction scheme: LIAIH4 Et,NH HCI (cat.) A C3H180 B C12H25N Me Но…

A: We have to draw the structures of the compounds A-D.

Q: Which one is an example of a standard solution? 1. Sugar solution 2. Basic solution 3. Acidic…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: Question 2 The vapor pressure of butane at 300 K is 2.2 bar and the density is 0.5788 g/ml. What is…

A: The relationship between the vapour pressure and the density is that , whenever pressure increases…

Q: The vast majority (99.6%) of argon in Earth's atmosphere is 40Ar however the argon in the Sun is…

A:

Q: Which of the following is not an allowed quantum state (n,l,mi,ms) a)5,4,-3,-1/2 B)3,2,2,1/2…

A: Which of the following is not an allowed quantum state (n,l,mi,ms)----->

Q: Colour of phenolphthalein indicator in basic solution is pink. a) b) F Select one: O True O False

A: Phenolphthalien is a colourless weak acid that is widely used as an indicator in titration…

Q: 16. The combustion of cyclopropane is as follows: Known bond strengths (KJ/mole) C-H 413 C=0 799 O-H…

A: ∆Hrxn can be calculated u sing bond energies.  For this we count number of moles of each bond broken…

Q: Draw the most stable form of the major product of the given ester upon exposure to excess NaOCH,CH,…

A:

Q: 3. Would you want to use a material with a high or low specific-heat to make a lunch box that will…

A: We would use a a material with high specific heat to make the launch  box .

Q: The enthalpy change ΔH for the IF5 reaction, shown below left can be calculated from the reactions…

A:

Q: The normal boiling point in °C of the substance in the phase diagram below is: Select one: a.…

A: z is known as triple point...

Q: C. %23 The wavelength and frequency of an electromagnetic wave are related to each other through the…

A: In a given question , we have to find out the frequency of given wavelength.

Q: 2. How many grams of N2 are needed to make -550.0 kJ? N2g) + 3H2g) 2NH3(g) AH = -92.6 kJ %3D

A:

Q: How can you use 1H NMR to determine if you synthesized a cis or trans alkene? O Look at the chemical…

A: NMR is branch of chemistry in which we deal with shielding and deshielding effect on protons by…

Q: Effect of analyte polarity on the Rf of an analyte on silica TLC. a) Which is more polar, benzoic…

A:

Q: what is the melting point of divanillyl oxalate

A: Divanillyl oxalate can be made by the reaction of triethylamine, vanillin and oxalyl chloride.…

Q: 1 add water to 100 mL of a 0.15 M NAOH solution until the final volume is 150 mL, what will the…

A:

Q: Consider a helium atom(m=6.6m10^-27 kg) that is confined to mobility along a line with a length of…

A:

Q: Name the two ways that remove the most carbon dioxide from the atmosphere.  Carbon dioxide combines…

A: The two ways of removing carbon dioxide is by a)Photosynthesis b)Carbon dioxide dissolves in surface…

Q: 1. (CH,CH,),CuLi 2. руridine 3. Br2- NaOH 4. Н.О Answer Bank PBr, CH, Li Br,, hv CH, MGB. CH,CH,Cu…

A: R2CuLi is shoft so it will attack on shoft position

Q: When a 24.4 mL sample of a 0.357 M aqueous hydrocyanic acid solution is titrated with a 0.322 M…

A:

Q: 4. Based on the Keg, is the reaction product favored or reactant favored or neither? a. Keq= 8.67 x…

A: Identify the reaction is product favoured or reactant favoured ??

Q: The bond angle in water H-O-H molecule is. ..degree. 1. 90 2. 105 3. 120 4. 180 а. 1 O b. 2 с. 3 O…

A: Given-> H2O

Q: How much heat will be transferred when 14.9 g of ammonia reacts with excess oxygen according to the…

A:

Q: Let's Find Out: How ideal gas and real gas differ Let's Do It This Way: Identify the type of gas for…

A: A question based on ideal and real gases that is to be accomplished.

Q: Sucrose is an example of weak-electrolyte. a) b) F Select one: O True False

A: Electrolytes are the substances which in their molten state or in aqueous solutions contain ions and…

Q: At what substrate concentration would an enzyme with a kcat of 30.0 s-1 and a Km of 3. (а) 0.0050 M…

A:

Q: 6. In Group C, do all four compounds appear to be molecular, ionic, or molecular acids? Based on…

A: Group 'C' means the 14th group element. In the 14th group carbon (C), silicon (Si), germanium (Ge),…

Q: Q.5. What substance is present if the FeCly, test gives a purple color? Which sample is the most…

A: (5) When salicylic acid and Aspirin both treated with neutral solution of Ferric chloride, FeCl3…

Q: Which of the esters cannot undergo Claisen self-condensation? Ph. Ph

A:

Q: A- methanal B- butanone C- benzaldehyde D- 3-methylcyclohexanone please draw condensed or line angle…

A: Line angle structural formula in which carbon atoms are at the corners and ends of lines. Each…

Q: What is the major product of the following reaction? Br2, -78°C С. D. Br Br. A. В. Br Br Br Br Br Br…

A: In organic chemistry, organic reactions are those in which organic reactant react to form organic…

Q: Decide what kind of crystalline solid each element or compound in the table forms, and what kind of…

A:

Q: Consider the following equilibrium: N, (g) + 3H, (g) = 2NH, (g) AG = - 34. kJ Now suppose a reaction…

A:

Q: A chemist has 4.773 grams of a mixture of cesium fluoride and cesium iodide which she plans to react…

A:

Q: Exactly 500 mL of 0.058 M MgCl2 are mixed with exactly 300 ml of 0.0019 M K2CO3. Will a precipitate…

A:

Q: All ethyl esters of long-chain aliphatic acids (for example, ethyl tetradecanoate, C13H27COOCH2CH3)…

A: There are various ways to form fragments in mass spectrometry-  1- alpha cleavage 2- heterolytic…

Q: We can see Charles's law in our kitchens also. Using a yeast as an ingredient, how is Charles' law…

A: According to Charles law,  Volume of a gas is directly proportional to the temperature of gas at…

Q: 2. The following product can be formed from an intramolecular Diels-Alder reaction. Please provide…

A: Detail mechanistic pathway is given below to find out the starting compound

Q: What is the pH of the solution formed when 1.13 g of diethylammonium chloride ((CH3CH2)2NH2)+Cl- is…

A: Buffer solution: A buffer solutions is an aqueous solution consisting of a mixture of a weak base…

Q: Provide the correct IUPAC name for As2S5

A:

Q: 1. If an object has a high specific heat, would it be more like a conductor or an insulator?…

A:

Q: ) For the following reaction, after you balanced the redox reaction, please calulate ΔS, ΔH, and ΔG.…

A: 1) Given that unbalanced Chemical equation -  SO2(g) + O2(g) + H2O(l) yields H2SO4 (aq) (unbalanced…

Q: Substance AHf (kJ/mol) KCIO3(s) -397.7 KCI(s) -436.5 What quantity of heat is released when 1.00 g…

A:

Q: water. What can be done to the mixture to help dissolve the remaining sugar After the mixture is…

A: Answer: This question is based on factors affecting the solubility of a solute in a solvent. Here,…

Q: 1. Calculate the volume of 3.0 M H2SO4 required to neutralize the total 3 ml of 4 % borax (by mass)…

A: 1.

Q: A Br FeBr3 2 -Li then H30* D LIAIH4 then H3O* Propose reaction conditions (A) and draw the products…

A: The reaction schema given is,

Q: Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data in…

A: Combustion :- The process of burning a compound in excess of air or oxygen is called combustion The…

Q: The enthalpy of reaction, AHrxn, for this reaction is-3918.4 KJ. Calculate the bond strength of the…

A: Given, reaction