BALANCING REDOX REACTIONS USING THE CHANGE IN OXIDATION NUMBER METHOD   1. PbO2 + HBr  >  PbBr2 + O2 + H2O 1.1 What are the two elements that changed its oxidation number?

Q: CI Reaction 1 Reaction 2 ? NO2 ?

A: Which one of the following is correct

Q: Is the part of a flashlight battery that is marked "+" the anode or the cathode? Explain why it is…

A: Answer: Flash light battery can be considered as a Galvanic cell in which chemical energy gets…

Q: Bond kJ. mol-1 Bond kJ. mol- Use the molar bond enthalpy data in the table to estimate the value of…

A:

Q: In a normal phase chromatography setup, which would be the predicted characteristics of the eluates…

A: A normal phase chromatography involves a stationary phase and a mobile phase.  It is an adsorptive…

Q: Charles' law (Pressure constant) 11)a) A sample of neon gas occupies a volume of 100.0mL at 20.00C.…

A:

Q: Given that the mobile phase conditions of the experiment use a 70% acetonitrile:30% methanol mixture…

A: Given the mobile phase conditions of the experiment which use a 70% acetonitrile:30% methanol…

Q: Which of the following is the major product of the following reaction (without hydride or methyl…

A:

Q: The reaction N204(s) 2NO2(3) has a K, - 0.140 at 25 °C. In a reaction vessel containing the gases in…

A: Given: Kp = 0.140 Partial pressure of N2O4 = 0.138 atm

Q: What is the energy change when the temperature of 14.2 grams of gaseous oxygen is decreased from…

A: Answer: In this question we have to calculate the change in internal energy of the gas keeping in…

Q: temperature 1II Amontons' Law(Volume constant) 12)a) A sealed glass tube contains neon at a pressure…

A:

Q: Give a clear handwritten answer and explain

A: Balanced the given redox reaction under basic condition and answer the following question---

Q: Describe atomic structure; name and describe the parts of atoms, and their arrangement/location and…

A: The atom is the smallest unit of matter that may be not divided into smallest particle without…

Q: 1. Analyst A bought a powder that contains sulfate ions, reported as 25.00% sulfur trioxide (MW…

A: SO3 + BaCl2 + H2O    gives    BaSO4 + 2 HCl So, 1 mol of sulphur trioxide will react with 1 mol…

Q: Calculate the pH of a 0.020 M solution of phenylacetic acid, C6H5CH2COOH. What will be the pH if the…

A:

Q: Which of the following reaction uses the reagent m-chloroperoxybenzoic acid?   a Epoxidation   b…

A: Which one of the following is correct

Q: Ka for formic acid (HCO2H) is 1.8 × 10^-4 . What is Kb for the formate ion (HCO2−)?

A: Answer: HCOOH (formic acid) is the weak organic acid and HCOO- (formate ion) is its conjugate base.

Q: 1a) A children's liquid medicine contains 100 mg of the active ingredient in 5 mL. If a child should…

A: To solve the given problem, w 1e need to use the unit factor.

Q: Which of the following CAN exist as cis-trans isomers? I. CH3CH2CH=CHCH3 II. CICH=CHCI III.…

A: An isomers which have same molecular formula but different arrangements of atoms .

Q: • Draw the Lewis Structure dot for Butanoic acid, CH3CH2CH2COOH and answer the following questions…

A: Lewis dot structure showing the arrangement of electrons in the molecule. The electrons are shown by…

Q: The concentration of Sr2* in a saturated solution of SrCrO4 is 6.29x10-3 mol/L at a certain…

A:

Q: Consider the reaction: 2H,0,(1)-2H,0(1) + 0,(g) Using standard absolute entropies at 298K, calculate…

A: Number of moles of H2O2 = 2.30 mole

Q: Question 4 Which significant information given below CANNOT be derived from mass spectra? molecular…

A: Mass spectra determine the masses of particles and of molecules, and to elucidate the chemical…

Q: At 20 °C, the following concentrations were found for the gases in an equilibrium mixture for the…

A: Given-> At equilibrium- [NO2] = 0.27 M [NO] = 4.2 × 10-8 M [N2O] = 0.021 M T = 20°C = 20 +273…

Q: the following reaction? 2 Pb)+ 4 Ch(g) → 2 P6C14 D. 784 kJ B. 392 kJ thalpy for the reaction: C(9)…

A: 13) As we know,  if the reaction is multipled by any digit then □H is also multipled by same digit.…

Q: For the following reaction, 12.7 grams of chlorine gas are allowed to react with 58.1 grams of…

A:

Q: Mass Spectrum 100 - 80 - 60- 40 20- 10 20 30 50 60 70 m/z Relative Intensity

A: Note : Propyl acetate will give m/z = 43 corresponds to acetyl cation.

Q: Describe the location of electrons; describe how electron placement determines chemical bonding,…

A: The electron which is negativily charged species present in the hollows space of the atom and rotate…

Q: The distribution coefficients for a compound are as follows: Kcyclohexane/water = 1.5 Kpentane/water…

A: Distribution coefficient is the measure of efficiency of extraction of organic compounds. Compounds…

Q: lodine-131 is used to treat Graves disease, a disease of the thyroid gland. The amount of 131| used…

A:

Q: Which of the following is capable of producing longer alkyne products?   a Internal alkyne with…

A: We have to tell among the given options, which one is capable of producing longer chain alkyne…

Q: What is the %composition of the Vitamin E peak in the sample?

A: In a chromatogram, the area under any peak represents the concentration of the compound the peak…

Q: Question 5 The bombarded fragments leads to the formation of molecular ion which is translated into…

A: Mass spectroscopy is used to determine structure of Unknown compound.

Q: All chromatographic techniques can be used as separation methods.  True  False

A: True : A mixture of compounds can be seperated using column chramatography. Benzoic acid and phenol…

Q: Compute for the water activity of a bottled beef rendang containing 15g salt and 275g of water.…

A: Assuming the solution to be ideal, the water activity is equal to the mole fraction of water in the…

Q: At a certain temperature, K. - 0.914 for the reaction NO2(3) + NO(3) = N2O(3) + O2lg) A mixture was…

A:

Q: What is the major driving force in chromatographic separation?       difference in affinity with…

A: Please find your solution below : Chromatography is an analytical technique used for the separation…

Q: 7. Assume that each of the following atoms reacts with ,hydrogen: (i) boron; (ii) silicon; (iii)…

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

Q: At 100.0 °C, K. 0.135 for the reaction 3H2(9) + N2(g) = 2NH3(g) Ina reaction mixture at equilibrium…

A:

Q: The hydronium ion concentration in an aqueous solution at 25 o C is 6.1 × 10-2 M. What is the…

A: Given- Hydronium ion concentration= 6.1×10-2M Hydroxide ion concentration=?

Q: Which of the changes to a voltaic cell of the general form X++Y → X + Y+ would result in an increase…

A: Oxidation reaction: Removal of the electron. Reduction reaction: Addition of the electrons. The…

Q: 58.1 g of He gas at STP will occupy how much volume? (Include your formula used and the set-up.)

A:

Q: (d), When 5.00 mL of0.300 M NaOH were added to 0.271 g of glycine (FM 75.07, 'H;NCH;CO;H) in 100.0…

A: pK2 =…

Q: The membrane shown is permeable only to solute molecules. In which direction will solutes flow? 0.4…

A: Here, Diffusion will takes place which is a physical process in which net movement of molecules from…

Q: OO O O O A 25.0-ml sample of 0.175 M C2H5NH2 is titrated with 0.150 M HCI. What is the pH at the…

A: Given,  Molarity of C2H5NH2 = 0.175 M  Volume of C2H5NH2 in mL = 25.0 mL  Molarity of HCl = 0.150 M…

Q: Civen af the tw trans jsomeis mare polar because of the tower Steric hindtoance within the structere…

A: False : Trans azo benzene is symmetrical. Therefore trans azo benzene is less polar than cis azo…

Q: For the theoretical reaction: A+ 2 B → D+F a plausible 2-step reaction mechanism was determined to…

A: The mechanism of the reaction :  1. A + B <---> C + D  2. B + C ---> D   (slow) Based on…

Q: Which of the following studies WILL LEAST LIKELY use the standard chromatogram of caffeine? analysis…

A: To determine: Which studies will least likely use the standard chrmatogram of Caffeien

Q: 1. A gas occupies a volume of 31.0 L at 18.0"C. If the gas temperature rises to 36.0°C at constant…

A: The ideal gas equation is -  PV = nRT = wRT/MM  Where -  P = pressure  V = volume  n = number of…

Q: Which of the following is directly related to reaction rate? A. Concentration B. Pressure C. Time D.…

A: Which of the following is directly related to reaction rate ?  A. Concentration   B. Pressure  C.…

Q: what is molarity, the average molarity, and standard deviation? igmsa H Titrations - Report Sheet…

A:

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.