nat volume of pure O2 (g) C125

Q: Which of the following is the most stable eclipsed conformation of this alkane? H3C H CH3 H3C CH3 H…

A: all the given four conformations are different. A) SYNPERIPLANAR B) ECLIPSED C) ANTIPERIPLANAR D)…

Q: I. STANDARD MOLAR ENTHALPHY OR FORMATION AND REACTION: Calculate the AH° of the following reaction.…

A:

Q: 6. Which of the processes will lead to a positive change in the entropy of the system? a.…

A: Answer: Entropy is the measure of system's disorderliness or randomness. In more possible states…

Q: Which of the following observations give evidence that a crystal is a hydrate? One or more answers…

A: Solutions- Crystals are hydrated because water molecule in present inside the crystal.

Q: When 64.7 g of HI (127.9 g/mol) forms from the reaction of hydrogen gas with excess iodine, how many…

A: Given, H2 + I2 → 2 HI mass of HI produced = 64.7 g  molar mass of HI = 127.9 g/mol mass of Hydrogen…

Q: À voltalc cell operating under standard conditions (1.0 M ion concentrations) utilizes the following…

A: Answer : as per the calculation of EMF E = E0 - 0.0591 /n *log ([anode]/[cathode] E0 = E0 cathode -…

Q: Each molecule of vitamin B12 contains a single atom of cobalt and is 4.35% cobalt by mass. What is…

A:

Q: 14. (Enthalpy and entropy of reaction from AH°; and S°) Given the following reaction 4HCI(g) + O2(g)…

A: Given reaction : 4HCI(g) + O₂(g) → 2Cl₂(g) + 2H₂O(g)

Q: A. Explain and identify which of the following processes are accompanied by an increase in entropy…

A: Entropy is the measurement of randomness, higher is the randomness or disorder, higher is the value…

Q: A student is conducting molecular weight determination of an unknown diprotic acid. He fiırst…

A: 1 mol of NaOH is neutralised using 1 mol of KHP. Also, 2 mol NaOH neutralises 1 mol of diprotic…

Q: Explain how to use a pH titration curve to determine the acid dissociation constant of an unknown…

A: WE HERE TAKE THE EXAMPLE OF TITRATING ACETIC-ACID VS NaOH AND FROM HERE AT HALF EQUIVALANCE POINT…

Q: a. What information does the term symbol 3F4 provide about the angular momentum of an atom? b. What…

A:

Q: 25) Which of the following compounds will undergo a decarboxylation reaction when heated? * OH HO…

A: ->Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon…

Q: 25. From the appropriate absolute entropies and heats of formation calculate the standard free…

A: Change in enthalpy (H) = Enthalpy of product - Enthalpy of reactant Change in entropy (S) = Entropy…

Q: 2) Illustrate the reaction mechanism for the ethylation of p-cyclopropyllphenol (other reactants:…

A: Friedel-Crafts alkylation is an alkylation of aromatics using an alkyl halide and a Lewis acid…

Q: tions involved. CN -Me NH3 i) A heat K„CO3 Eto CHO

A:

Q: Would you expect myoglobin to be more or less soluble in water than a protein composed primarily of…

A: Myoglobin is more soluble in water. Because the non-polar amino acid side chains on the surface…

Q: Show the correct equation of Gas law,the variables and what is held constant for the law

A: Gas law relates the pressure, volume and temperature of a gas with each other.

Q: 4.0000 -1.0499 1.0478 =4.1667 100 [ 1e9] 200 300 "section 14, 58" 1 /nfs/neo500/data/UG-1abs/nmr 15…

A: Every nuclei will have spin and if an external magnetic field is applied, there will be an energy…

Q: What is the numerical value of the activity coefficient of aqueous ammonia (NH,) at an ionic…

A: To find the numerical value of activity coefficient of aqueous ammonia (NH3) at an ionic strength of…

Q: Match the molecular ion (from electron impact mass spectrometry) with the correct compound. (Make…

A: We have the identity the compound from the given molecular ion peak at 122.

Q: What ion would stronium replace in hydroxylapatite?

A: We have to tell the ion which is replaced by stronium in hydroxylapatite.

Q: The following titration curve is expected from which acid-base pair? Equivalence Point pH = 7 pH…

A:

Q: 10) Calculate the %(v/v) of solute in the following solutions. Hint use density equation to get…

A: % v/v of any solute is calculated by the following formula.  % v/v = volume of solutevolume of…

Q: 2. Why is it important to choose a specific dye to a particular substrate or fabric/textile type? 3.…

A: 2. Answer - Textile substrates are formed from yarns or fiber webs by several techniques including…

Q: sing the uiermodynamic information in the ALEKS Data tab, calculate the sta C(s, graphite) + 2Cl,…

A: Given-> C(s)  +. 2Cl2(g) -----> CCl4(g)

Q: Which one has the higher concentration of H3O+ a solution with pOH of 8.50 or a solution with…

A: Hydronium ion concentration is an important parameter of an aqueous solution. The concentration of…

Q: HẠN NH IV. Explain the. follawing experimental observation. Semicarbazide only adds the arrowed N to…

A:

Q: Which of the following is a conjugate acid-base pair? A) H3ASO4, AsO, B) H2ASO, HASO,2- C) H2ASO.,…

A: Which of the following is conjugate acid - base pair ?

Q: (a) Compare the old (Boot's method) and new syntheses of Ibuprofen in the light of Green Chemistry…

A:

Q: 1) 2) H3O*

A:

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A:

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

Q: E 3 E 2 E 1

A: In an energy profile diagram,if energy of reactant is greater than energy of product, heat is…

Q: AH = -484. kJ AS = -1394. 2H, (g) + 0, (g) –→ 2H,0(g) AG = kJ Which is spontaneous? O this reaction…

A: Chemical equilibrium is branch of chemistry in which we deal with the speed at which rate of…

Q: A voltaic cell was constructed using a zinc electrode (submerged in zinc sulfate), a copper…

A: Statement (d) is false as Cu will not released to copper sulfate solution.

Q: A .075M solution of a CH3NH2 has a pH of 9.25. a) Write the Kp reaction for CH3NH2. b) Calculate its…

A: Given that, the concentration of the methyl amine is C = 0.075 M. The pH of the solution is 9.25. a)…

Q: 14) How many milliliters of 0.225M HCl would be needed to react exactly with 20.0mL of 0.135M NaOH?…

A:

Q: BlOHle OH Urea, air

A:

Q: Phosphorus-32 is radioactive and has a half life of 14.3 days. How much of a 9.00 mg sample would be…

A:

Q: The following titration curve is expected from which acid-base pair? Fqpivalence Paint pll-7 Volume…

A: Titrant is the substance ( reagent solution of  known concentration) which is added in titration.…

Q: он CH3 H.C.

A: Here we have to predict the best solvent that can able to differentiate the pair of given organic…

Q: CI

A: The following steps are required- First of all find the longest carbon chain containing functional…

Q: Which carbon/s of the following compound will give the most electrophilic aromatic substitution…

A:

Q: Groundwater containing 0.0001468 M of Mg2+ is at equilibrium. Use the solubility constant…

A: Solution - pH = pH is a scale used to specify the acidity or basicity of an aqueous solution. Acidic…

Q: Suggest 5 topics of educational research for chemistry students

A: Advanced water treatment, water reuse  and challenges faced during process.       May be research…

Q: (c) Complete the following reactions. ON в CHO CHO Br

A: To complete the given reaction.

Q: 2) Predict the major product(s) for the following reactions. 1) (а) 2) H30*

A:

Q: 2+ forms a coordination complex, Cu(NH3)4+2 ions (i.e. product of Lewis base-Lewis acid reaction) in…

A: Given Cu(OH)2 is most soluble in which of the following solutions? A.  6.0 M Na2CO3 B. 6.0 M NH3 C.…

Q: 3. The natural decay series starting with the radionuclide 235U follows the sequence represented…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.