Is each of the following statements true or false? Drag the appropriate statements to their respective bins. Reset Help True False A neutron has twice the mass of a proton. Electrons attract each other. A proton is attracted to an electron. Electrons and neutrons have opposite charges.
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- Please answer atleast 4 sub-parts. Thank you.By the use of Henderson Hasselbalch equation; pH = pKa + log{[acetate ion]/[acetic acid]} 4.5 = 4.75 + log{[0.10 M]/[acetic acid]} -0.25 = log{[0.10 M]/[acetic acid]} [Acetic acid] = 0.10 M/ 10-0.25 [Acetic acid] = 0.10 M/0.56 [Acetic acid] = 0.1786 M Moles of sodium acetate dissolved in 250 mL buffer solution = 0.10 M× (250mL/1000mL) × 1L = 0.025 mol Weight (w) of sodium acetate (purity 100%) dissolved to prepare 250 mL of solution with buffer concentration of 0.10 M is calculate as follow; w100% = 0.025 mol × 82.0343 g/mol = 2.051 g Weight (w) of sodium acetate (purity 99%) is calculate as follow; w99% = 2.051 g× (100/99) = 2.072 g What was the volume of 6.12 M acetic acid HC2H3O2 needed to prepare the 250 mL acetic acid/acetate ion buffer solution required in this part? Show your calculations.Determine the enthalpy of solution of MgCl2(s) in units of kJ/mol. The link provides the data needed. https://learn-us-east-1-prod-fleet01-xythos.s3.amazonaws.com/5df2d4e43336c/1279242?response-cache-control=private%2C%20max-age%3D21600&response-content-disposition=inline%3B%20filename%2A%3DUTF-8%27%27Hydration%2520enthalpies-%2520common%2520ions.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200916T180000Z&X-Amz-SignedHeaders=host&X-Amz-Expires=21600&X-Amz-Credential=AKIAZH6WM4PL5SJBSTP6%2F20200916%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=a46787b52dc1cef15163e4c4ff519a111d03cbbb18f328c8c98afece27c86745
- A 0.064 kg of octane vapor (MW = 114) is mixed with 0.91 kg of air ( MW = 29 ) in the manifold is 86.1 kPa, and the temperature is 290 K. Assume octane behaves ideally, what is the total volume of this mixture. Show unit analysis and conversion on solution. Round off to four decimal places.A solution containing 100 lbm KNO 3/100 lbm H 2O at 80°C is fed to a cooling crystallizer operated at 25°C. Slurry from the crystallizer (KNO3 crystals suspended in saturated solution) is fed to a filter, where the crystals are separated from the solution. Use the solubility data in Figure 6.5-1 to determine the production rate of crystals (lbm/lbm feed) and the solid-to-liquid mass ratio (lbm crystals/lbm liquid) in the slurry leaving the crystallizer.PLEASE GO THROUGH THE CONCEPT AND ANSWER THE QUESTION ASAP. I need it quick please and I will definitely consider giving thumbs up if you help me. Link: https://drive.google.com/file/d/1mN-k-am1ILxrEOzVQ-8kLtrv5vK8HFvw/view?usp=sharing Question
- An 11.5 wt% mixture of acetic acid in water is to be extracted with 1-butanol at atmospheric pressureand 25°C in countercurrent operation. We desire outlet concentrations of 0.5 wt% in the water and 9.6wt% in the butanol. Inlet butanol is pure. Find the number of equilibrium stages required and the ratioof water to 1-butanol by using the McCabe-Thiele diagram design method. The acetic acid equilibriumdistribution is given by K = 1.613 (wtfr. in butanol/wtfr. in water). Required steps:a. Convert the streams and equilibrium data to mass ratio unitsb. Plot the equilibrium curvec. Plot the operating curve to determine the water to 1-butanol ratiod. Step off the equilibrium stagesYou can’t excess the interactive so I write down what information was being presented.Soil Fertility Index and Soil Evaluation Factors, Are these equations suitable for alkaline soil? Soil Fertility Index (SFI) = pH + organic matter (%, dry soil basis) + available P (mg kg-1 dry soil) + exch K (cmolckg-1) + exch Ca (cmolckg-1) + exch Mg (cmolckg-1)-exch Al (cmolckg-1) Soil Evaluation Factor (SEF) = [Exch K (cmolckg-1) + Exch Ca (cmolckg-1) + Exch Mg (cmolckg-1)-log(1 + exch Al (cmolckg-1)] × organic matter (%, dry soil) + 5
- 9. Calculate the Go in kJ/mol. 3Fe2+ (s) + 2Cr(aq) ⟶2Cr3+(aq) + 3Fe (s); Eocell=0.30 V Group of answer choices -170 +170 +87 +58 -195 10. Calculate Ecell in volts. Zn(s)|Zn2+(2.50x10-4M)||Sn2+(1.50M)|Sn(s) Eocell=+0.624 V Group of answer choices 0.736 0.635 0.512 0.848 no correct answerIn the synthesis of hydrocarbons, the carbon source is carbon dioxide. Although the CO2 concentra?on in the atmosphere raises at a drama?c speed, point sources are probably the easier sources for a PtX process. Iden?fy 3 possible point sources, explain why CO2 is formed and what challenges each of the three CO2 streams presentsFor extracting acetic acid (A) from a dilute water solution (C)into ethyl acetate (S) at 25oC, estimate or obtain data for (KA)D, (KC)D, (KS)D, and βAC. Does this system exhibit: (a) high selectivity,(b) high solvent capacity, and (c) easy solvent recovery? Can you select a better solvent than ethyl acetate?