COO-K+

Q: A tiny piece of paper taken from the Dead Sea Scrolls has an activity of 10.8 disintegrations per mi...

A: Radioactive disintegration follows first order kinectics. Hence, the rate of decay can be followed b...

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A: To prepare 1 L of solution in a volumetric flask, whether to add 1000 mL of water into it, it is to ...

Q: Which of the following is the correct net ionic equation for the reaction between potassium carbonat...

A: valency of any ion is given by the no. of charge on the ion for example  Cr++ has 2 valency. the val...

Q: What is the order of this reaction with respect to CO ?

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Q: Guiding Question #3 • What two volumes are need to calculate one final volume of a diluted solution?...

A: Dilution means addition of water in solution  If we want to know final voulme of solution then we sh...

Q: FeS(s)+H++I−→FeS(s)+H++I−→ Express your answer as a net ionic equation. Enter noreaction if no reac...

A: The reaction between iron(II) sulfide and Hydrogen iodide in which a gas is a product: Molecular equ...

Q: Complete the following chart.

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Q: write a mechanism for this reaction

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Q: a 15.0 g lead ball at 25.0 was heated with 40.5 joules of heat. Given the specific heat of lead is 0...

A: Given : Mass of lead = 15.0 g Initial temperature of lead = 25.0 oC Specific heat of lead = 0.128 J/...

Q: Calculate the energy release,q Initial mass- 196.08g Final mass- 195.08g Initial temperature- 22.5 F...

A: In order to find the energy released we first write down the given data: Initial mass= 196.08 g. Fin...

Q: A pure solid has two crystal forms: α and β, and is under transformation from α to β at 1 atm and 25...

A: In order to find which of the two forms has higher density we first write down the given data: Tempe...

Q: Chemistry Question

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Q: Is it possible the decomposition of hypochlorite to give chloride and molecular oxygen, in basic med...

A: For a spontaneous redox reaction to occur, the standard reduction potential of the reduction half-re...

Q: How many moles of atoms of each element are present in 1.00 mol of each of the following compounds? ...

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Q: Calculate the pH of a solution prepared by dissolving 0.37 mol of formic acid (HCO2H) and 0.23 mol o...

A: Given, moles of formic acid = 0.37 mol  moles of Sodium formate = 0.23 mol  Volume = 1 liter As we k...

Q: Chemistry Question

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Q: Can i get help with these problems

A: The key point here is that the larger substituent has to occupy the equatorial position.

Q: What is the equilibrium constant value for the decomposition reaction of ammonium hydroxide to ammon...

A: Concentration of equilibrium is given in solution so we can calculate directly value of Kc  In recat...

Q: A chemical engineer is studying the following reaction: 2 H,S(9)+30,(9) –→ 2 SO,(9)+2H,0(9) At the t...

A: The direction of the reaction depends on the reaction quotient of the reaction  1) If reaction quoti...

Q: II Me A Story Video - Chapter 2: Loss | Stream Free If 30. g of AGNO3 is available, what volume of 0...

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Q: Chemistry Question

A: Noble gases: Noble gases are present in group 18 of periodic table and are also known as zero group...

Q: Suppose 74.0 mL of 0.370 M CoCl2  solution is added to 35.0 mL of 0.820 M NiCl2 solution. Calculate ...

A: The molarity of CoCl2 solution is = 0.370 M The volume of CoCl2 solution is = 74.0 mL The molarity o...

Q: Can i get help with these problems

A: The stability of the chair form is determined by the number of equatorial substituents present in it...

Q: Nitrous oxide, N2O, laughing gas, is used as an anaesthetic.  Its Henry’s Law constant is 2.4 x 10-2...

A: Nitrous oxide (N2O) is an anaesthetic compound. The amount of nitrous oxide dissolved in water under...

Q: Give the common name of the following compounds:

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

Q: If the volume of an equilibrium mixture of N2(g)N2(g), H2(g)H2(g) and NH3(g)NH3(g) is reduced by dou...

A: According to Le Chatelier’s principle if a system at equilibrium is subjected to a change in volume,...

Q: Predict the chemical formula for the ionic compound formed by Al3+ and C2H3O2-

A: The structure of ionic compound formed is drawn below--

Q: Standard enthalpy of fusion of silver at 1234K is 11.30 kJ/mol. How much energy (kJ) is required to ...

A: Moles=91107.8682=0.843 mol  

Q: QUESTION 21 Combination of a perchlorate ion and a H* ion forms an oxoacid whose formula is and whos...

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Q: An electron microscope employs a beam of electrons to obtain an image of an object. What energy must...

A: Energy of the a particle can be calculated using the Plank-Einstein relation which is E=hν where the...

Q: A solution was prepared by mixing 30.00 mL of 0.100 M  and 100.00 mL of 0.200 M . Calculate the mola...

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Q: High concentrations of ammonia (NH3), nitrite ion, and nitrate ion in water can kill fish. Lethal co...

A: Molality of a solution represents the concentration of a solute present in 1 kg of solvent, which is...

Q: Refer to the periodic table and write the predicted electron configuration for each of the following...

A: Electronic configuration of Ir is given by, [Xe]4f145d76s2: [Xe]4f^14 5d^7 6s^2

Q: 1.5-mol ideal gas initially at 220 K is compressed reversibly and adiabatically from 45.0 L to 15.0 ...

A: The final temperature of the ideal gas considered can be calculated using the Poisson equation for r...

Q: The molecule below belongs to a group of interesting molecules called ‘helicenes’. This compound has...

A: Helicenes are the molecules in which the aromatic benzene ring are joined together forming a helical...

Q: B.3 Cycloalkanes Skeletal Formula Compound Condensed Structural Formula 1. Cyclopentane 2. Cyclohexa...

A: Condensed structural formula : it is the way of writing the structure in which covalent bonds are no...

Q: a) 2 H2O20) -> Oze) + 2 H2O0 If oxygen acted as an ideal gas, each 1.00 ml of 3.0 % of H2O2 should h...

A: Given: Volume of 3% H2O2 = 1.0 mL Temperature = 25 oC Pressure = 101.3 kPa. Volume of oxygen = 10.0 ...

Q: 5) Cesium 137 is a radioactive element that was released into the Atmosphere during the Chernobyl Nu...

A: Half life of a radioactive material is the time taken by a radioactive material to reduce to its hal...

Q: Write answer in format i need (as stated)

A: Given : Dose to be given = 600.0 mL  Total duration = 8.00 hours = 8.00 X 60 = 480 min              ...

Q: What is the selenide ion concentration [Se2-] for a 0.100 M H2Se solution that has the stepwise diss...

A: The concentration of H2Se is 0.100 M. The dissociation constants, Ka1 and Ka2, of H2Se are 1.3×10-4 ...

Q: A 0.364-g sample of benzil (C14H10O2) is burned in a bomb calorimeter and the temperature increases ...

A: A bomb calorimeter or constant volume calorimeter , is a device often used to determine the heat of ...

Q: Write a balanced net ionic equation for the reaction of NiBr 2( aq) with (NH 4) 2S( aq).

A: Given reaction,    NiBr2(aq) with (NH4)2S(aq)

Q: Convert the following values to mmHg 1.5 atm       785 torr       11 psi

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Q: How many joules of heat energy are required to heat 25.0 grams ethyl alcohol from prevailing room te...

A: Given : Mass of ethyl alcohol = 25.0 g Initial temperature of ethyl alcohol = 22.5 oC Final temperat...

Polymers

Polymers are naturally occurring or synthetically produced large molecules or compounds which are made up of series of repeating units called monomers. They are joined together by chemical bonds. The term polymer is coined from Greek roots meaning 'many parts' and are found almost everywhere from the plastics bags to the rubber of our tires to our DNA strands.