IDENTIFY THE OXIDATION NUMBER OF EACH ELEMENT IN THE GIVEN CHEMICAL FORMULA. -All answers to be entered via short answer are in the numerical format -Include the sign (either positive or negative), no spaces Example: KI What is the oxidation number of potassium? Answer: +1 What is the oxidation number of iodine? Answer: -1 CHEMICAL FORMULA: Na₂C₂O₄ (sodium oxalate) Questions: 1. What is the oxidation number of sodium in sodium oxalate? 2. What is the oxidation number of carbon in sodium oxalate? 3. What is the oxidation number of oxygen in sodium oxalate?

Q: 1. What is the pH aft er adding 18 ml of 0.12N sodium hydroxide? 2.What is the pH at equivalence…

A: Solution: 4. Moles of NaOH used for 18 mL = molarity x volume/1000 = 0.12 x 18/1000 = 0.00216 moles…

Q: 3-pentene-2-one =1.(ch3ch2ch2)2culi 2.h30+= 4-methylpentane nitrile 1.LiAlH4 2.H2O=…

A:

Q: 25. A gas has a volume of 230. mL and a pressure of 560 torr. What must the pressure be in order for…

A: Given ; V1 = 230 mL    V2 = 345 mL              P1  = 560 torr And temperature is constant.  We know…

Q: 107Ag Two naturally occurring isotopes of silver are (relative abundance 52.00%) and 109Ag (relative…

A: Isotopes are those atoms of an element that have same atomic number but different mass number.  Mass…

Q: Calculate the mass of solute required to prepare 4.0 L of 0.50 M aluminum hydroxide.

A: We know that Molarity = Number of moles/ Liter Using this formula we can solve this problem

Q: potassium hydroxide to exactly neutralize 25.00 mL of sulfuric acid. Determine the molarity of the…

A: 1.When sulphuric acid (H2SO4) neutralizes with pottasium hydroxide(KOH) produce water and pottasium…

Q: Criven kea= = 1.5 X 10-3 M Curen a Solution that is 0.265m malonic acid and 1.97 M Sodium malade ?…

A: From Henderson hasselbalch equation, we have pH = pKa + log [salt]/[acid]    ----(1) Given : Ka =…

Q: What would you multiply "grams of boron" by to get the units "atoms of boron" ? )( )( g B (number)…

A: Here we are required to find number of atoms present  in boron

Q: he pH of a half-neutralized solution is 1.86. What is the value of [H+] and Ka?

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Q: Question 4 What is the approximate boiling point of the liquid in the mixture with a lower boiling…

A: First plateau shows the boiling point of lower boiling point component at 70°C and second plateau…

Q: PRE-LAB QUESTIONS 1. Look up the melting point of pure aspirin from a reliable source. It can be…

A: We have to tell the melting point of aspirin or acetylsalicylic acid.

Q: Consider the constitutional isomers of molar mass = 100 represented below. Significant peaks in the…

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Q: NH₂ CI 1. Acyl Chloride and AICI, catalyst 2. Zn, Hg, HCI Cl₂ and FeCl3 catalyst HNO3 and H₂SO4 1.…

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Q: An IR spectrum of an unknown compound is shown below. Predict the principal functional group present…

A: IR spectroscopy is used to identfy functional group of chemical compound

Q: Treatment of hydroxylamine (H₂NOH) with an excess of Fe (III) results in the formation of N₂O and an…

A: Please find the below attachment. Hope this helped you.   Thank you.

Q: Predict the Product Provide the major organic product(s) for each of the following reactions shown…

A: The reaction proceed as:

Q: Enter the symbols for the ions of magnesium and iodine. Enter the lons formed by these elements and…

A: Magnesium is group 2 alkaline earth metal having atomic no 12. Iodine is group 17 element having…

Q: A sample of helium gas at a pressure of 604 torr and a temperature of 23.6°C, occupies a volume of…

A: Given : P1 = 604 torr   P2 = 903 torr T1 = 23.6 °C     T2 = T1 V1 = 817 ml We know, at constant…

Q: the solubility of silver sulfate in water is determined to be 570 mg/100mL based on the given…

A: A question based on solutions that is to be accomplished.

Q: 9. Identify the following pairs of structures as structural isomers, cis-trans isomers, or the same…

A: Solution: In this question we have to identified the type of isomers.

Q: Consider the constitutional isomers depicted below. One of these has a strong IR absorption peak at…

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Q: A heating-cooling system cycles gases between states. Assume this system is using 1.00 moles of an…

A: Accordingthe  to question we have, Number of moles (n) =1.00 mole Specific Heat at constant volume…

Q: A compound is found to contain 42.88 % carbon and 57.12 % oxygen by mass. What is the empirical…

A: Given,  A compound contains 42.88 % carbon and 57.12 % oxygen by mass.

Q: True or False. Write True if the statement is Correct and False if otherwise. Write your answers…

A: Precipitimetry is a titration method in which precipitation of desired ion occurs.

Q: 2. What is the relationship between magnitude of the dipole arrow and the difference in…

A: Sorry, Bartley don't allow any feature to upload the screen video clips to the student.  Sorry for…

Q: A reaction has a AH° = 25 kJ/mol and a AS° = -43 J/K at 298 K. Calculate the equilibrium constant…

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Q: 16. How much heat (in Joules) is required to raise the temperature of 50.0 g of brass from 20.0°C to…

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Q: 6 e molecule shown below will either: 1) Undergo an acid-base reaction by losing a proton (bolded H)…

A: Here we check for the aromaticity of product to check its stability

Q: (9) Guven Solution Contining both 1.5MHI and 1.5m Hock ka for Hod is 3.5 x 10-8 Find the PH n (9)…

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Q: What chemical species is primarily responsible for the cleaning action to remove volatile organic…

A: Volatile Organic molecules released as gases into atmosphere from certain solids or liquids and have…

Q: ||| An unknown has the formula C H₂O. The IR spectrum of this substance has a strong vibration near…

A:

Q: Table: Data Wt of KHP (g) MW of KHP meg, of KHP Volume of sodium hydroxide solution used (ml)…

A: Given: Data Trial  wt of KHP 5g MW of KHP   meg of KHP   Volume of Sodium hydroxide…

Q: ▼ esc Br Express your answer as an integer. N= Submit Part B Se N = Express your answer as an…

A: The atom consists of a positively charged nucleus which consists proton and neutron and the nucleus…

Q: chlorine to produce nitrogen and hydrogen chloride gas. How many litres of Gaseous ammonia reacts…

A:

Q: What is the Electrolysis of the brine solution Production in a chemical Industrial Process? A)…

A: Note - The given question is a multipart questions, hence I solved first three questions according…

Q: How many moles of V are there in a sample of V that contains 5.56x1024 atoms? Submit Answer moles…

A:

Q: C. Properties of a Buffered Solution pH of buffer (half-neutralized unknown) before the addition of…

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Q: garlic or skunk-like odor. The concentration of this compound was determined by shaking a 3.47 g…

A: Back titration is a titration method in which the concentration of an analyte is determined by…

Q: The voltaic cell described by the notation below measured a potential of 2.4 V. If the reaction was…

A:

Q: For the molecular compound phosphorus trichloride, what would you multiply "grams of PCI3" by to get…

A: To convert any given mass of substances into number of molecules, we first convert it to number of…

Q: What volume, in L, is occupied by 10.0 g O₂ at 298 K at 0.900 atm? SED

A:

Q: What volume, in mL of 2.0 M sulfuric acid is required to make 450 mL of 0.25 M solution of sulfuric…

A: Given a solution of sulfuric acid having concentration of 2.0 Mwe are asked to calculate the volume…

Q: OR A certain amount of a radioactive substance was observed to be of mass M at time T and of mass m…

A: Given data: mass of radioactive at time T is M (initial mass ), Again after some radioactive decay…

Q: Which, if any, functional group in the molecule below would undergo basic hydrolysis most easily? C…

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Q: O Na 00₂ Br Br 10. Br Br

A: To choose the correct reagent for the given reaction.

Q: Calculate the concentration of Fe3+ ion in reaction tubes 1-5 of the experiment (after mixing with…

A: Each Fe(NO3)2 gives 1 Fe3+(aq). Hence the initial concentration of Fe3+(aq) is same as Fe(NO3)2…

Q: most intravenous For injections, great care is taken concentration of the solutions to be injected…

A: The reason for this lies in the principle of osmotic pressure. We know that osmotic pressure (π) =…

Q: Chem 129 Topic Set 7 Variations of titration and Buffers G. How would you make 350mL of a buffer…

A: Desired pH of the buffer = 9.00 Desired volume of the buffer = 350 mL Desired concentration of the…

Q: Question 2: Some, but not all, compounds that feature a C—N bond are amines. (Think carefully about…

A: The given statement is true. i.e. All C---N bond are not amine.

Q: When performing a gram stain, it is necessary to remove crystal violet stain from any gram negative…

A: Given, Total volume of decolorizer desired = 300 mL

Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxidation. During a redox reaction electron transfer takes place in such a way that one chemical compound gets reduced and the other one gets oxidized.