Chemistry concepts and calculations

2. Explain the following situations: a. Why do antibodies to antibodies raised a

2. Explain the following situations: a. Why do antibodies to antibodies raised against a particular enzyme occasionally bind the enzymes substrate with a high degree of specificit…

2. Explain the meaning and consequences for chemistry of wave-particle duality.

2. Explain the meaning and consequences for chemistry of wave-particle duality. (4 Marks) 3. Calculate the de Broglie wavelength of (a) a mass of 1.0 g travelling at 1.0 m s1 , an…

2. Extraction of caffeine from tea: a. What is the advantages of adding CaCO, be

2. Extraction of caffeine from tea: a. What is the advantages of adding CaCO, before the extraction b. If we extract with dichloromethane we have 2 phases. Which phase will the lo…

2. F araday\'s law: When the magnetic flux inside a closed loop of wire (coil) c

2. F araday's law: When the magnetic flux inside a closed loop of wire (coil) changes, emf is induced in the wire, IV] t-ti, emf The induced emf generates a current in the wire, I…

2. Ferrous ions can bedetermined by allowing them to stoichiometrically react wi

2. Ferrous ions can bedetermined by allowing them to stoichiometrically react with acolorless solution of 1,10-phenanthroline (“Phen”) according to the followingreaction. Fe 2+ +3…

2. Ferrous iron (Fe2) must be removed from a steel plant wastewater to meet an e

2. Ferrous iron (Fe2) must be removed from a steel plant wastewater to meet an effluert discharge limit of 1 0" mol/L The treatment will be carried out in two steps. In the first …

2. Fill in the table below using the Gas Chromatograms provided by your TA for y

2. Fill in the table below using the Gas Chromatograms provided by your TA for your partner's Partner's Sample Weight: S g (from previous week) Attach the chromatograms to your fi…

2. Following the Procedure of this experiment, a student titrated 0.653 g of an

2. Following the Procedure of this experiment, a student titrated 0.653 g of an unknown weak, monoprotic acid with 0.100M NaOH and monitored the titration with a pH meter. Her tit…

2. For N2(g), CP,m is nearly constant at 3.5R = 29.1 J/(mol K) for temperatures

2. For N2(g), CP,m is nearly constant at 3.5R = 29.1 J/(mol K) for temperatures in the range 100 to 400 K and low or moderate pressures. (a) Calculate q, w, ?U, and ?H for the rev…

2. For N2(g), CP,m is nearly constant at 3.5R = 29.1 J/(mol K) for temperatures

2. For N2(g), CP,m is nearly constant at 3.5R = 29.1 J/(mol K) for temperatures in the range 100 to 400 K and low or moderate pressures. (a) Calculate q, w, ?U, and ?H for the rev…

2. For Ni the 1 onsation Electron affinity is 1560 a.Cakviate the energy h\" the

2. For Ni the 1 onsation Electron affinity is 1560 a.Cakviate the energy h" the sublimation energy 4297 ew's Law Nita) Nrte) . 2e, a»-, b. Write the electron configurations for th…

2. For Ni the 1\" loriration energy (E) is 736.7 ki/mol 2- is 17530 ki/mol (16 p

2. For Ni the 1" loriration energy (E) is 736.7 ki/mol 2- is 17530 ki/mol (16 points) the sutlination enerev tNi(s)-yNialls 429,751/met Electron affinity is +1560k) a. Calculate t…

2. For a Na+-Cl- ion pair, attractive and repulsive energies, EA and ER respecti

2. For a Na+-Cl- ion pair, attractive and repulsive energies, EA and ER respectively, depend on the distance between the ions r, according to: EA= -1.436/r ER= 7.32 X 10-6/ r8 EN=…

2. For at least three different classes of lipids (choose from the triacylglycer

2. For at least three different classes of lipids (choose from the triacylglycerols, glycerophospholipids, steroid hormones, bile acids or gangliosides) give the function of that …

2. For each of the following quantum numbers, give the atomic orbital designatio

2. For each of the following quantum numbers, give the atomic orbital designation. n l ml ms 2 0 0 -½ 3 1 -1 +½ 4 2 0 -½ a. 2p, 3s, 4d b. 2p, 4p, 4f c. 2s, 3d, 4p d. 2s, 4p, 4s e.…

2. For each of the following solvent pairs label which would be the top layer an

2. For each of the following solvent pairs label which would be the top layer and bottom layer in a separatory funnel when doing an extraction: a) water/diethyl ether; b) water/he…

2. For each of the following solvent pairs label which would be the top layer an

2. For each of the following solvent pairs label which would be the top layer and bottom layer in a separatory funnel when doing an extraction: a) water/diethyl ether; b) water/he…

2. For each of the reactions below: Write formulas for the reactants. Then write

2. For each of the reactions below: Write formulas for the reactants. Then write the potential products on the product side. Circle each product that removes ions from solution an…

2. For each trial with the unknown acid, calculate the following Trial 2: Moles

2. For each trial with the unknown acid, calculate the following Trial 2: Moles of NaOH required to reach the equivalence point Moles of unknown acid in the beaker Molar mass of u…

2. For half-cell B, when NaOH(aq) is added to Cu2+(aq), a sparingly soluble soli

2. For half-cell B, when NaOH(aq) is added to Cu2+(aq), a sparingly soluble solid, Cu(OH)2, will form. a. Write the reaction for the formation of Cu(OH)2. The Ksp for Cu(OH)2 is 4…

2. For laboratory data related to carbon dioxide, Calculate the molecular weight

2. For laboratory data related to carbon dioxide, Calculate the molecular weight of carbon dioxide. Then estimate the standard deviation of the result and discuss its reliability.…

2. For oxidative addition (OA) of an alkyl halide to a metal centre, which mecha

2. For oxidative addition (OA) of an alkyl halide to a metal centre, which mechanism or mechanisms of oxidative addition are the following observations most consistent with (brief…

2. For the addition of 125.00 mL of 0.1352 M calcium bromide to 175.00 mL of 0.1

2. For the addition of 125.00 mL of 0.1352 M calcium bromide to 175.00 mL of 0.1015 M sodium oxalate, determine the following: a. Write the balanced molecular equation for the rea…

2. For the following example, identify the following. H 2 O(l) H 2 O(s) question

2. For the following example, identify the following. H2O(l) H2O(s) question 2 options a negative H and a negative S a positive H and a negative S a negative H and a positive S a …

2. For the following example, identify the following. H 2 O(l) H 2 O(s) question

2. For the following example, identify the following. H2O(l) H2O(s) question 2 options a negative H and a negative S a positive H and a negative S a negative H and a positive S a …

2. For the ground (1s) state of H atom, the radius of the orbit predicted by the

2. For the ground (1s) state of H atom, the radius of the orbit predicted by the Bohr’s theory is equal to the most probable electron-nucleus distance from the wave function-based…

2. For the reaction, 2CrO\" + 2H+ Cr207-2 + H20, the equilibrium constant is 4.2

2. For the reaction, 2CrO" + 2H+ Cr207-2 + H20, the equilibrium constant is 4.2 x 1014, Molar absorptivities for the chromium species are: E1 (Cr04-2) (M.1 cm-1) 1.84 x 10 4.81 x …

2. Galvanized iron is iron that has a coating of zinc. The zinc protects the iro

2. Galvanized iron is iron that has a coating of zinc. The zinc protects the iron from corrosion. Suppose that a rectangular piece of galvanized iron has a length of 3.33 cm, a wi…

2. Gas chromatography-mass spectrometry was used to measure the components of a

2. Gas chromatography-mass spectrometry was used to measure the components of a spill at an accident site. Figure (a) shows the total ion chromatogram and figure (b) shows the sel…

2. Gibbs free energy question: Express the differential of its Gibbs free energy

2. Gibbs free energy question: Express the differential of its Gibbs free energy dG in terms of dT and dV. The heat capacity, isothermal compressibility, and thermal expansion coe…

2. Give the electron-domain and molecular geometries of a molecule that has the

2. Give the electron-domain and molecular geometries of a molecule that has the following electron domains on its central atom: a) four bonding domains and no non-bonding domains,…

2. Given a solution of 10 mg of traumatic acid dissolved in 100 mL of water, and

2. Given a solution of 10 mg of traumatic acid dissolved in 100 mL of water, and using the partition coefficient given for traumatic acid in question 1, show that extracting the 1…

2. Given a solution of 10 mg of traumatic acid dissolved in 100 mL of water, and

2. Given a solution of 10 mg of traumatic acid dissolved in 100 mL of water, and using the partition coefficient given for traumatic acid in question 1, show that extracting the 1…

2. Given that the melting point of salicylic acid is 159 C, can you be certain t

2. Given that the melting point of salicylic acid is 159 C, can you be certain that the product you isolated was not pure salicylic acid that was unchanged during the reaction ? C…

2. Given that you have calculated the theoretical yield possible from two or mor

2. Given that you have calculated the theoretical yield possible from two or more starting reagents, which compound is the limiting reagent? Select one: a. the reagent that gives …

2. Given the following data, calculate the average rate for the reaction between

2. Given the following data, calculate the average rate for the reaction between bromine and formic acid (Br2 + HCOOH 2Br + 2H' + CO2) for the following times: a. t-0.0s, tr 50.0 …

2. Given the following reaction between iron(II) with permanganate ion in an aci

2. Given the following reaction between iron(II) with permanganate ion in an acidic solution. Which atoms experience a change in oxidation number? Identify which compound is reduc…

2. Given the reaction of sodium hydroxide with nitric acid: NaOH(aq) HNO3(aq) H2

2. Given the reaction of sodium hydroxide with nitric acid: NaOH(aq) HNO3(aq) H20(l) + NaNO3(aq) ) calculate the theoretical molar heat of neutralization, using the information gi…

2. Given the reaction: 4 NH 3 (g) + 5O 2 (g) ---> 4 NO(g) + 6 H 2 O How many lit

2. Given the reaction: 4 NH3(g) + 5O2(g) ---> 4 NO(g) + 6 H2O How many liters of O2(g) at 756 torr and 27.0 °C isneeded to react with 100.0 g of NH3?

2. Goldfish were acclimated to 5°C and 25°C for 21 days, after which brain membr

2. Goldfish were acclimated to 5°C and 25°C for 21 days, after which brain membrane lipids were purified and identified. Membrane lipids were divided into three major classes, dep…

2. H 2 O, Zn HOCH 2 CH 3 ,heat 2. NaOH, H 2 O 2 (A) HBr (D) Cl 2 , H 2 O,cooled

2. H2O, Zn HOCH2CH3,heat 2. NaOH, H2O2 (A) HBr (D) Cl2, H2O,cooled (G) 1. O3 2. H2O, Zn (J) NaOCH2CH3, HOCH2CH3,heat (B) HBr, peroxides (E) Br2, CCl4,cooled (H) HCl (K) Br2, light…

2. HCOs can exist in water either undissociated form, H2COs or dissociated forms

2. HCOs can exist in water either undissociated form, H2COs or dissociated forms, HCO and cos-. But their relative concentrations depend on pH. FECO) with pK,-6.35, pK2 = 10.33 (t…

2. How many calories of heat do you need if you want to raise the temperature of

2. How many calories of heat do you need if you want to raise the temperature of 330 g of gasoline from 18.0°C to 22.0°C? Specific heat of gasoline is 0.40 cal/g·°C. (Enter your a…

2. How many grams of barium sulfate will form when 50.0mL of 0.125M sodium sulfa

2. How many grams of barium sulfate will form when 50.0mL of 0.125M sodium sulfate and 12.5mL of 0.60M barium chloride are mixed? Also provide the net ionic equation. Na2SO4 (aq) …

2. How many grams of sucrose (C 12 H 22 O 11 ) are in 2.0 L of 0. 650M sucrose s

2.         How many grams of sucrose (C12H22O11) are in 2.0 L of 0. 650M sucrose solution? 3.         What volume of 0.150 M HNO3 solution will completely react with 25.0 mL of 0.…

2. How many sp hybridized carbon atoms are there in the completed Lewis structur

2. How many sp hybridized carbon atoms are there in the completed Lewis structure? You are correct. Your receipt no. is 159-2395 Previous Tries 3. How many sp- hybridized atoms ar…

2. How would I calculate the equivalent weight of each of the following: a) KMnO

2. How would I calculate the equivalent weight of each of the following: a) KMnO4 reduced to MnO2 b) Ca(NO2)2 oxidized to nitrate c) NaClO4 reduced to Cl- 3. How would I calculate…

2. How would the calculated value of the molar mass of the unknown acid be affec

2. How would the calculated value of the molar mass of the unknown acid be affected (higher, lower, or no change) if the following errors occurred? Briefly explain why in each cas…

2. Hydrazine (N2H4) is continued to be used as a liquid propellant and for termi

2. Hydrazine (N2H4) is continued to be used as a liquid propellant and for terminal descent of spacecraft. All the following 3 reactions (left unbalanced for you to solve) have to…

2. Hydrogen peroxide, H202 decomposes according the following reaction: 2 H2O2(a

2. Hydrogen peroxide, H202 decomposes according the following reaction: 2 H2O2(aq) 2 H2O(g) O2(g) > + The following were collected during a study of its decomposition at a cert…