A buffer is prepared by adding 1.00 L of 1.0 M HCl to 750 mL of 1.5 M NaHCOO. What is the pH of this buffer? Ka = 1.7 × 10−4

Q: Worksheet 2: Formulae and structures of organic compounds Complete the table below to identify the…

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Q: How many significant figures are in the calculation: [ (4.3158 cm x 8.14 cm) - 35.02 cm² ]? 04 5 A O…

A: Given,  [(4.3158 cm × 8.14 cm)- 35.02 cm2           The number of significant figures are in the…

Q: For the aqueous [PbC14] complex K =2.5 × 10¹5 at 25 °C. 2+ Suppose equal volumes of 0.0046M Pb(NO3),…

A: We have to find equilibrium molarity of Pb2+

Q: Intensity (counts)- CRYSTALLINE STRUCTURE MORPHOLOGY COMPOSITION TOPOGRAPHY 32000 NIK Cr 0.01 Energy…

A: Ans. (i) Option b is right Morphology: The morphology of a crystal describes the set of…

Q: Identify each peak (peak splitting and ppm) and identify the unknown compound. Please draw the…

A: Identify each peak (peak splitting and ppm) and identify the unknown compound.

Q: Calculate the enthalpy of reaction for the equation using the bond energy values given. 2CIF+ 0₂ →…

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Q: For each class of hydrocarbon derivative, give the structure (condensed or detailed structural…

A: Name : Ethyl cyanohydroxyiminoacetate Structure :  Chemical formula :C5H6N2O3 Common name : oxyma…

Q: 1. Consider the decomposition of NO2 (shown below).  The reaction is second order in NO2 with k =…

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the…

Q: (SHOW CALCULATIONS) The density of tert-butanol is 0.775 g/mL at room temperature. What is the mass…

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Q: III. Provide the name for each compound. 1. CuCN 2. FeO 3. ZnO 4. Al₂O3 5. AgCl

A: 1. CuCN - Copper (I) cyanide 2. FeO - Iron (II) oxide 3. ZnO - Zinc oxide

Q: Determine the Epc in the following voltammogram 20.0 B 7.5 -5.0 -17.5 -30.0 Current (A) A 800.0 1…

A: The Epc in CV can be calculated as follows

Q: Use the dropdowns to create a correct and complete isotope notation. An isotope has 108 neutrons…

A: The isotope can be determined based on the atomic number. The atomic number of an atom is the number…

Q: How many grams of NaOH are there in 125 mL of a 0.221 M NaOH solution?

A: NaOH molarity = 0.221 M  Volume given = 125 ml no. of moles(n) = molarity ×Vml1000  Substitute the…

Q: 1. Define the term activation energy 2. Study the graph below of a reaction 121 2.1. Calculate the…

A: Activation energy is defined as the minimum amount of energy that is required by the substituents to…

Q: what kind of test/reagent should be used to differentiate the two compounds

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Q: PC15 (s) + H₂O(1) POC13 (1) + 2HCl(aq) When 56.39 g of phosphorus pentachloride reacts with excess…

A: Here water is in excess, So PCl5 is the limiting reagent

Q: Nitrogen dioxide is one of the many oxides of nitrogen (often collectively called "NOx") that are of…

A: Here we are required to find the equilibrium pressure of N2O4.

Q: The molar solubility of nickel(II) sulfide in a water solution is M.

A: Known: Solubility product constant of nickel(II) sulfide = 3.0×10-19

Q: Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and…

A: Here we have to determine mass of sulphur consumed in the following equilibrium reaction in the…

Q: 6. No two radioactive isotopes decay at the same rate. Half-life (t2) is the time required for half…

A: Radioactive reaction involves the conversion of unstable nuclei to a stable nuclei. It is converted…

Q: In the chemical engineering lab last week, the complete decomposition of 435.8 g of ammonium…

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Q: "Start the chromatography by adjusting the fraction collector to 130 drops per fraction (about 3…

A: It is given that for 130 drops per fraction it shows volume 3 mL That means volume of 130 drops is 3…

Q: what kind of test/reagent should be used to differentiate the two compounds in the photo? what will…

A: Here we are required to distinguish ketone and aldehyde .

Q: Addition of 0.1M H2SO4 instead of concentrated H2SO4. b. Na2SO4 was not added in the obtained…

A: Adding 0.1M H2SO4 doesn't affect the product too much only it effects is that it will add in major…

Q: Calculate the enthalpy of reaction for the equation using the bond energy values given. CH4 +202 CO₂…

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Q: COMPOSITION TOPOGRAPHY CRYSTALLINE STRUCTURE MORPHOLOGY MORPHOLOGY TOPOGRAPHY CRYSTALLINE STRUCTURE…

A: The morphological study refers to the material's shape, size, and structure. Usually, Scanning…

Q: What is the mass number of an isotope with an atomic number of 56 and that has 75 neutrons?

A: Mass number is the atomic mass of an atom. It is the sum of no of protons and no of neutrons present…

Q: (b) How do hydrogen bonds properties of water? TC 12. Describe dehydration and hydrolysis. How are…

A: Dehydration reaction is a chemical reaction that involves the loss of water from the reacting…

Q: OCH3 N N(CH3)2 N. SO3H

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Q: H3C. H3C OH CH3 3-isopropyl-4-methylcyclohexanol There are four cis, trans isomers for…

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Q: Classify each monosaccharide according to the position of the carbonyl group and the number of…

A: In there is aldehyde group then aldo is written and if there is ketone group then keto is written.…

Q: Which of the following is TRUE about the Hinsberg’s Test? a. The test will give a positive result…

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Q: What is the ground state electron configuration of a Co²+ ion? O 1s22s22p 3s³3p 4s²3d5 O1s²2s²2p…

A: The atomic number of Cobalt is 27.

Q: The following can be used as carrier gas for GC except-* O Argon Oxygen O Helium

A: An inert gas that carries sample in Gas chromatography is called a carrier gas.

Q: 3) OCH3 OCH3 ОН @ H Т. H CH3 -OCH3 (f) Cl Н Н

A: To give the IUPAC names for the following compounds.   Few points to keep in mind while naming a…

Q: what kind of test/reagent should be used to differentiate the two compounds in the photo? what will…

A: In photo ther is mainly two groups one is ester and other one is acid,so the test will be to…

Q: The equilibrium concentration of aluminum ion in a saturated aluminum phosphate solution is M.

A: Solutions                     The equilibrium concentrations of aluminium ion in a saturated…

Q: Next step of the neptunium-237 decay series, very unstable francium-221 is produced. The half-life…

A: Given: Half-life of  francium-221 = 5.00 minutes Initial mass of francium-221 = 6.12 grams Time…

Q: Complete and balance the following equation. Plutonium-239 + alpha particle → ________ + neutron…

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Q: You used a mobile phase of 90% ethyl acetate (CH3CH2COOCH3)/5% acetic acid (CH3CO2H) as the mobile…

A: And is option C  All the compounds would have travelled further up the plate.

Q: 8. A student determines the density of a substance to be 1400 g/L. What is the % error if the…

A: Here we are required to find the % error in density.

Q: As the airstream is cooled, the new-point temperature... and the absolute humidity. 00 1- Increase,…

A: Answer - The correct option is (2) Remains the same , remains the same Explanation - According to…

Q: Describe structural isomerism and the different types that exist. With the aid of diagrams use the…

A: To describe the structural isomersim. To explain the structural isomerism of C5H12 and C5H10.

Q: Given that the actual initial rate recorded in experiment 3 is 5.0 x 10³ mol dm³ s¹, calculate the…

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Q: For the aqueous [Hg(NH3)4]²* complex K, = 1.91 × 10¹⁹ at 25 °C. Suppose equal volumes of 0.0062 M…

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Q: Pick one condition or disease that involves an acid or base disturbance. Describe the condition,…

A: Answer - diarrhea (metabolic acidosis) This disease is caused by  an acid or base disturbance…

Q: The heat of vaporization AH, of ethyl acetate (C4HO₂) is 35.1 kJ/mol. Calculate the change in…

A: Given, Heat of vaporization of ethyl acetate (∆Hvap) = 35.1 kJ/mol Change in entropy (∆S) = ? Mass…

Q: Give the reagent and the reaction conditions that would distinguish between the following compounds.…

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Q: Which one of the following represents the molecular equation for the reaction of NH3 with HI? A) NH3…

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Q: While ethanol (CH3CH₂OH) is produced naturally by fermentation, e.g. in beer- and wine-making,…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.