A. Balance the following redox reactions given their half-reactions 1. Half reaction 1:12(aq)21 (aq) Half reaction 2: Fe (s) Fe2*(aq) (2 pts) 2 Half reactiom 1: Fe2+(aq) →Fe (aq) Half reaction 2: Cr20 (aq) → Cr3+ (aq) (Reaction takes place under acidic conditions) the

Q: What is the ΔHfus of ethanol (46.06 g/mol) which has Kb of 1.99 and freezes at -117.3 °C?

A: Ethanol freezes at - 117.3◦ C . The Kb of ethanol is 1.99 . We have to calculate the ∆Hfus of…

Q: The osmotic pressure of an aqueous solution at 298 K is 99.0 kPa. Calculate the freezing point of…

A:

Q: The pyridinium ion (C5H4NH) is a weak acid (Ka = 5.60 x 10-6). Calculate the pH of a solution that…

A:

Q: A в

A: When A is treated with only C6H5Li (excess),  When A is treated with H2O,

Q: Rank the following from greatest molar solubility (4) to the least molar solubility (1). Assign a…

A: If solubility product of the salt is greater then the  ionic product , then solubility occurs .

Q: Identify each substance as Lewis acid, Lewis base, both, or r -" PF3 OH CH3CH3 ring to nother…

A:

Q: Rank the following from greatest molar solubility (4) to the least molar solubility (1). Assign a…

A:

Q: Which of the following statements is/are true about the equivalence point of a strong acid…

A:

Q: che standard reaction entropy of a

A:

Q: Four solutions of an acid dissolved in water are sketched below, as if under a microscope so…

A: According to the Arrhenius theory, the substance that gives hydrogen ion H+ in the aqueous solution…

Q: A 10.000g sample of wter contains 11.9% H by mass. What would be the % H in 20.0000g sample of…

A: Given: % H in 10.00 g sample of water = 11.9%

Q: Complete the table below. Round each of your entries to 2 significant digits. You may assume the…

A:

Q: 160.95 205.0 O(g) 02(g) FeO(s) Fe203(s) FegO4(s) Fe(OH)2(s) 60.8 90.0 145.2 79.5 che answer should…

A: As we know, for a chemical reaction,  □Srxn = [Total entropy of products] - [Total entropy of…

Q: Which of the following acids would be best to form a buffer with a pH of 2.21? O A. HCN pKa = 9.31…

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

Q: • Determine the number of grams of H2SO4 that would be contained in 800.0 mL of a 1.5 M H2SO4…

A: Given-> Volume b= 800 ml = 0.800 L (1L =1000 ml) Molarity = 1.5 M

Q: If the equations for the extreme lines (a and e) using units shown in graph above are: y= 2.6x + 3.0…

A: We have find out Vmax for enzyme.

Q: 1 can you draw cellulose in 2 D structure please

A:

Q: What must be true about the change in total potential energy of a collection of atoms for a stable…

A: The process in which the potential energy of the system decreases will stabilize the process.

Q: For the first blank select an answer with a (1) in front. For the second blank, select an answer…

A:

Q: what are the pKa value os trisodium arsenate to calculate pH at second equivalence point?

A:

Q: What is the name of the ionic compound CaCO3? Enter the name in all lowercase letters (including any…

A: Given,  CaCO3  And  AgBr

Q: What is the molar concentration of Na+ ions in 0.0350 M solutions of the following sodium salts in…

A: Given:: [NaBr] =0.0350 M  [Na+] = ?

Q: In the spectrum of sodium, there is a line with a wavelength of 589 nm. a) What color is this line?…

A: Given :- wavelength = 589 nm  To determine :-  color of line  frequency  energy of each photon

Q: Look at the Lewis structure below and determine the bond angle (See Table at end of problem). What…

A: Hybridization(S) =1/2(valency electron in central atom+no. Of atom attached to central atom by…

Q: Question 15 Match the following molecules based on their bond angles: 1. O-S-O bond is so,2 2. O-N-O…

A:

Q: E. BRCN (C in center) 2. A. CO2 B. NO: C. NH;CI D. SO, Best Lewis Structure (show all electrons and…

A: We have find out Best Lewis Structure  e geometry Approx. Bond angles Polar or non-polar  Total lone…

Q: Liquid ethanol (C,H;OH) at 25°C, 1 atm enters an insulated reactor operating at steady state and…

A:

Q: The mechanism for photodimerization of B is shown below: B+ hv – B* k1 B* +B- B2 k2 B* B+ hv' k3…

A:

Q: 2. Describe the basic chemical requirements for the aminoglycosides. Why are these compounds…

A: Aminoglycosides are active against aerobic bacteria, gram-negative bacteria as the bacterial cells…

Q: What is the empirical formula of a compound of carbon, hydrogen, and Oxygen that contains 51.56% and…

A: Given:: %C = 51.56%  %H = 14.09 % then, empirical formula = ?

Q: Using these results, what value should you report for the Ksp of AgCl? 06.7 x 10 10 03 x 10-11 01.5…

A: Ksp of AgCl = 1×10^-10

Q: 1. Caleulate th equilibrium constant at 2s E For thereaction: 2H"+ " + Dacg) = Hzegs2D From the…

A: GIVEN:-

Q: Look at the molecule depicted below, several atoms need more or less electrons to complete its…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: H2A is a weak acid. What is [A2j in a 0.10 M H2A solution? [Ka1 = 5.4 x 10-6; K a2 = 5.8 x 10-10 %3D…

A:

Q: Rank the following from greatest molar solubility (4) to the least molar solubility (1). Assign a…

A: Let us calculate the solubility and then further we will discuss its order.

Q: 1/0.120 of Vide CHdoHdsoMedb quedudlurion with voluthe ofa2LWhais the percent by volu ol Boluddr

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

Q: molecular weight of poly vinyl chloride

A:

Q: CI Toluene 2-Chloro-N-(2,6-dimethylphenyl)acetamide dipropylamine Reflux 1 hour

A: Organic synthesis

Q: match the molecule with respective intermolecular forces - v CH4 A. Hydrogen bonding v H20 B. London…

A:

Q: All of the following are added to five different containers of water, each with the same mass of…

A:

Q: Draw the product of the reaction shown below. HO РСС CH2CI2 FF nny

A: Reaction of alcohol with PCC is the oxidation of alcohol.

Q: NaBH4, NICI2 is a O soft electrophile O hard nucleophile hard electrophile O soft nucleophile

A:

Q: 4. (a) What is meant by anisotropic EPR spectra? Mention three applications of EPR spectroscopy.

A:

Q: Determine the Ka and pKa for an aqueous solution containing 0.19M of a weak, monoprotic acid, HA,…

A: pH = -log[H3O+]  log[H3O+]  = -pH  So, [H3O+]  = 10-pH  Ka is the ratio of  product of concentration…

Q: A solution is 1×10-4 M in NaF, Na,S, and Na3PO4 What would be the order of precipitation as a source…

A: Given that

Q: Mg + O2 --> MgO NazCO3 --------> Na2O + CO2 C3H8 + O2 ------- CO2 + H2O Al + O2 ------> Al2O3 BaCl2…

A: The answers are given below

Q: Using Hess's Law, calculate for the change in enthalpy of the given reaction. Calculate ∆ H for…

A: Given,  2NO2 (g) + 2NO(g) + O2 (g) →2N2O4 (g) ∆H1 = −228.54 kJ4NO(g) + 2N2O(g) + 5O2 (g) →4N2O4 (g)…

Q: 2.43 grams ol brominie (Bi)i dssolved in a 2.91 kg aqueOus soludon Howinny pei of Bin nis solution?…

A:

Q: Show how the molecules satisfy the octet rule ff.the given example.1.CO2 2.PCI3 3.CCI4 4.NF3 5.SIH4…

A: The octet rule states that the atoms in a compound bonded through a covalent bond must complete…

Q: Mg + O2 -------- MgO Na2CO3 --------> Na2O + CO2 C3H8 + O2 -----> CO2 + H2O

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