ng and lear XO water treatment systems - Forkly XcakeAssignment/takeCovalentActivity.do?locator=assignment-take[Review Topics][References]Use the References to access important values if needed for this question.The boiling point of diethyl ether, CH3CH,0CH,CH3, is 34.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte thatdissolves in diethyl ether is DDT.A student dissolves 14.72 grams of DDT, C14H,Cl5 (354.5 g/mol), in 266.0 grams of diethyl ether. Use the table ofboiling and freezing point constants to answer the questions below.SolventFormulaK, (°C/m) Kr(CC/m)WaterH,00.5121.86EthanolCH,CH,OH1.221.99ChloroformCHCI,3.67Benzene2.535.12Diethyl ether CH;CH,OCH,CH32.02The molality of the solution ism.The boiling point of the solution isSubmit AnswerRetry Entire Group9 more group attempts remaining9:18 PM11/17/2021InsertPrt ScF11.FnLockF9F10F12DelF7F8

Molality is the unit of concentration and is defined as the moles of solute dissolved per kg of…

Use the References to access important values if needed for this question. The boiling point of diethyl ether, CH;CH,OCH,CH3, is 34.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is DDT. A student dissolves 14.72 grams of DDT, C,H,Cls (354.5 g/mol), in 266.0 grams of diethyl ether. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula K, ("C/m) K (°C/m) Water H2O 0.512 1.86 Ethanol CH;CH,OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene CH, 2.53 5.12 Diethyl ether CH,CH,OCH,CH3 2.02 The molality of the solution is m. The boiling point of the solution is °C.

Use the References to access important values if needed for this question. The boiling point of diethyl ether, CH;CH,OCH,CH3, is 34.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is DDT. A student dissolves 14.72 grams of DDT, C,H,Cls (354.5 g/mol), in 266.0 grams of diethyl ether. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula K, ("C/m) K (°C/m) Water H2O 0.512 1.86 Ethanol CH;CH,OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene CH, 2.53 5.12 Diethyl ether CH,CH,OCH,CH3 2.02 The molality of the solution is m. The boiling point of the solution is °C.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.16QAP

See similar textbooks

Similar questions

physical chemistry Roughly, what is the error introduced by the solution of some of the CO2 in the water in the bomb? The solubility of CO2 is about 0.0015 g/mL at 25°C and 1 atm CO2 pressure. The heat of solution of CO2 in a dilute aqueous solution is roughly -19.4 kJ/mol. Assume that the final CO2 pressure is 2 atm and that Henry's Law applies.
A sample of water is found to contain Ca(HCO3)2 = 40.5, Mg(HCO3)2 =46.5, CaSO4=32.1, CaCl2=22.45, MgSO4= 27.6, SiO2=13.5, NaCl= 15.4 mg/L. Calculate Temporary, permanent and total hardness in degree French.
Suppose the rate of evaporation in a hot, dry region is about 2m per year, and the seawater there has a salinity of 35 ppt. Assuming 90% yield, how much salt (NaCl) can be harvasted each year from 1 km2 of solar evaporation ponds? (The concentration of Sodium in seawater is 480.61 mM)
Prepare 0.1N H2SO4 solution of 250ml volume. (Density of H2SO4 is 1.84 and purity is 98 %)
What is the concentration of O2 in freshwater? Air temperature= 295.65 K. Air pressure = 1 bar(about = to 1atm). Henry's constant, from the table= 1.3 x 10-3 mol/ (kg x bar). PO2 can be calculated from the fact that oxygen is .21 mole fraction of air. Hint- The partial pressure of a gas in a mix of gasses is found by multiplying the total pressure by the mole fraction of that gas. Find the concentration in g/kg from the answer you just got.
Given the property on the left as the criterion, which of the following order of comparison is TRUE? Select one: a. Increasing electrical conductivity at 25 °C: Si < SiO2 < SiCl4 b. Increasing standard boiling point: 0.10 molal solution of sucrose in CH3CH2OH < pure CH3CH2OH < 0.10 molal aqueous solution of sucrose c. Increasing standard melting point: I2 < Br2 < Cl2 d. Increasing melting point: Na < NaCl < Na2O
Ascorbic acid (vitamin C, C6H8O6C6H8O6) is a water-soluble vitamin. A solution containing 81.0 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 g/mLg/mL at 55∘C a. Calculate the mass percentage of ascorbic acid in this solution. Express the mass percentage to three significant digits. b. Calculate the mole fraction of ascorbic acid in this solution. Express the mole fraction to three significant digits.
How many moles of solute particles are present in 1.64 mL of 0.458 M K2SO4? (the answer is 2.25E-3 but i would appreciate some insight on what steps to take!)
The distribution coefficient of hydrogen sulfide between benzene and water at 25 degrees Celsius is 5.9880. What is the minimum volume of benzene at 25 degrees Celsius necessary to extract in a single step 80% of the hydrogen sulfide from 1 liter of 0.15 molar aqueous solution of hydrogen sulfide?a.) 0.1336b.) 23.9520c.) 0.6680d.) 1.5030E.) none of the above
What will be the new vapor pressure of the water in a 250 mL solution of 5 grams CaSO4 (MW= 136.14 g/mol) with a density of 1.15 g/ml? The Vapor pressure of water ins 23.8 mmHg at 25oC. answer in 2 decimal places no need to write the unit
Desalination is one possible process of extracting water from salty water ( from sea ) for industrial & domestic use. Briefly discuss and illustrate how to do it psychrometrically. attach the illustration pls
Calculate the formality and normality of a commercial solution of H2SO4 whose purity is 97% and its density is 1.82 g/mL.MW of H2SO4= 98.0 g/mol