What is the AHfus of ethanol (46.06 g/mol) which has Kp of 1.99 and freezes at -117.3 °C? 4.68 kJmol-1 O 3.72 kJmol1 5.91 kJmol-1 O 2.56 kJmol-1

Q: Classify the given as direct, indirect, or back titration problems. A 50.00-mL sample of a citrus…

A:

Q: 22. A 0.716 mole sample of gas is kept under 875 torr pressure and occupies 6.0 L of space. What…

A:

Q: :0: 3- A. The Lewis diagram for PO3- is: The electron-pair geometry around the P atom in PO43- is…

A:

Q: For the reaction N2(g) + 3 H2(g) 2 NH3(g) Kc= 0.0600 at a certain temperature. In an equilibrium…

A: • The given reaction is,          N2 + 3H2 ⇌ 2NH3(g)  • The values provided in the question are:-…

Q: In an electrochemical cell, a metal anode lost 0.190 g while a total volume of 0.04507 L of hydrogen…

A:

Q: Choice 141 - 0-12 snucoon 564 + 10-1 jinucieon 137 - 10-2 sinucleon 548 - 10- Jinucieon

A: According to the question, we need to determine the nuclear binding energy of potassium-40.  Given,…

Q: Considering perfect gases, which state function is zero when two substances are mixed?…

A:

Q: Griven Sme buthor Satution in ohich of चप® +otue ववTभ t वट च्यृ०ण्d जिपलिक हमहकगा ? हरावाक O-19 m…

A:

Q: Endothermic reactions should be cold to the touch?

A: There are two types of reactions- these are exothermic reaction and the endothermic reaction.  Both…

Q: 2. Determine the formal charges on S and C in the structure below, then draw a better structure in…

A:

Q: A sample of neon initially has a volume of 3.50 LL at 18 ∘C∘C. What final temperature, in degrees…

A: We have to predict the temperature in degree Celsius.

Q: Propose synthesis and show all intermediates for questions 3-4 HO H2N For #5 complete the rxn…

A: Pic 1 : oxidation followed c- alkylation using LDA. Second c-alkylation using LDA. One carbon Wittig…

Q: For the reaction at equibrium. 3Feis) + 4H2Oul - Fez04ls) + 4H2(a), removing some of the product.…

A: As per Le Chatelier's principle, when any system in equilibirum is subjected to any external change…

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

A:

Q: In the laboratory, a general chemistry student measured the pH of a 0.544 M aqueous solution of…

A: Given :-  Concentration of aqueous solution of acetic acid = 0.544 M  pH = 2.488  To calculate :-…

Q: In the laboratory, a general chemistry student measured the pH of a 0.544 M aqueous solution of…

A: We have to predict the acid dissociation constant.

Q: Which of the the following elements are isotones? a) 12C, 13C, and 14C (c) 14C, 15N, and 160 (b)…

A: Isotones are the atoms of different elements that have the different atomic number (Z) due to the…

Q: Use the data given here to calculate the values of AGan at 25 'C for the reaction described by the…

A:

Q: 3Fe(s) + 4H2O(g)  Fe3O4(s) + 4H2(g)  What is the appropriate equilibrium constant expression for…

A:

Q: The densities, ρ, of SO2 at multiple temperatures are given below: t °C 132 145.2 151.7 156.1…

A: A numerical problem based on properties of gas that is to be accomplished.

Q: When the following reaction is ot equilbrium, which of these relationships is always true? 2 Ogig) -…

A: Answer: Given balanced chemical equation is shown below: 2O3(g)↔3O2(g)   It means, 2 mole ozone is…

Q: Give some examples of gas in liquid solutions and their primary solute and solvent.

A: There are 3 states of matter: solid, liquid and gas. In many cases the same element can exist in all…

Q: A solution was prepared by dissolving 12.0 g of glucose (180 g/mol) in 150. mL solution. What is the…

A:

Q: Quèstion 22 Estimate the freezing point of 250 cm3 water sweetened by the addition of 2.7 g sucrose.…

A:

Q: List the number of protons, neutrons, and nucleons (protons + neutrons), in that order, for an…

A: Given:

Q: Give a clear handwritten answer...

A: Here we have to write mechanism of the following reactions.

Q: pr the balanced equation shown below, how many moles of SOs will react with .7727 moles of CaHsS? he…

A:

Q: The osmotic pressure of an aqueous solution at 309 K is 120 kPa. Calculate the freezing point of the…

A:

Q: Which of the following molecules has an assumed van't Hoff factor equal to 17 a.  MgS0+ b. NaHS04…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Identify the major aldol condensation product obtained when the following compound is heated in the…

A: Given compound is pentanal  And it has aldehyde functionality. It is a base catalyst reaction.…

Q: A 0.1510 g KHP (MW = 204.22 g/mol) sample required a volume of 57.04 mL of NaOH solution to reach a…

A:

Q: A student attempts to determine the molecular weight of an unknown liquid with a boiling point of…

A: To explain the reason why the student is unable to determine the molecular weight.

Q: After

A:

Q: A gas occupies a volume of 9.4 L at a pressure of 3.5 atm.With a constant temperature,what will the…

A: • The values provided in the question are:-       i) Initial volume of a gas, V1 = 9.4 L    ii)…

Q: Given the ff. data. Determine the actual yield of aspirin. Mass of salicylic acid = 2.15 g, volume…

A: Step 1:  Data given Mass of salicylic acid = 2.15 grams Volume of acetic anhydride = 5.0 mL (…

Q: For the following reaction, AP(C6H14VAt was found to be -6.2 x 10-3 atm/s. COHA(@) → C6H6(g) +…

A:

Q: 26. Given the following reaction, what volume of oxygen would be needed to react with 250. grams of…

A: Moles of propane = 250 g / 44.1 g mol-1 =5.6689 mol 1 mol of propane = 5 mol of O2 5.6689 mol…

Q: Using net ionic equations and solution stoichiometry, calculate the molarity of the principal…

A: net ionic equation is- CH3COO- + H+→CH3COOH (aq) Also, Moles = Molarity  * Volume

Q: The atomic mass unit is based on the mass of the _________ atom.

A:

Q: ΔΗ In which phase boundary is the equation, p = P* + - applicable -In AV T* O Miscibility boundary O…

A: The given equation is a integrated form of the classius clapeyron equation.

Q: 13.71 In a copper plating experiment in which copper metal is deposited from a copper(II) ion…

A:

Q: Adenoie osphate (ATP) SAdnyionine SAM) What is the role of each reactant in the reaction above? What…

A: Question is that, what is the role of the reactant.? 1. In the first step reaction, triphosphate…

Q: The activation energy for the following first-order reaction is 102 kJ/mol. N205(G) – 2NO2(9) +…

A:

Q: 2,3-diaminobutane and butane-2,3-dione

A: The structure of 2,3-diaminobutane is:

Q: Br NASH DMF `CH Question 2 Categorize and draw the product for part B of the lab

A:

Q: 13.74 An electrolysis cell for aluminum production operates at 5.0 V and a current of 1.0 x 10° A.…

A: Answer: This question is based on faraday's first law of electrolysis which is shown below:…

Q: Use the proper graphing techniques to find the equivalence and half-equivalence points and determine…

A:

Q: on dissolving into their respective solvents (water in all cases, ex Vis absorption is monitored…

A: We know that UV-Vis spectroscopy is a useful technique for the structure elucidation of a compound.…

Q: Balance the reaction below; determine the sum of the coefficients; this is in an acidic solution!…

A: The reaction given is, => BrO3- + Cd ↔ Br2 + Cd2+

Q: In a two-vessel technique titration set-up, what is the unknown substance if the volume of…

A: phenolphthalein and bromocresol can be used in determination of alkalinity of water  The alkalinity…