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a sample containing 2.5g liquid diethyl
A sample containing 2.50 g liquid diethyl ether is cooled...
please help!!!! A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled...
please help!!!!
A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to cool the gas? pple A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity...
A 9.82 -g sample of pure liquid is vaporized at 193 °C and 172 torr. At...
A 9.82 -g sample of pure liquid is vaporized at 193 °C and 172 torr. At these conditions it occupies 5.43 L. What is the molar mass of the substance? g/mol Calculate the density of nitrogen at 0.649 atm and 43°C. Density = g/L g/L at a pressure of 1.41 atin and a terapuratute A sample of krypton gas, Kr, has a density of 35°C.
A 233.9 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0...
A 233.9 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to condense the gas?
A 7.65 -g sample of pure liquid is vaporized at 194 °C and 186 torr. At...
A 7.65 -g sample of pure liquid is vaporized at 194 °C and 186 torr. At these conditions it occupies 3.62 L. What is the molar mass of the substance? __g/mol
pls i need a clear hand writting If a cylinder contains 15.6 g of CO2 in...
pls i need a clear hand writting
If a cylinder contains 15.6 g of CO2 in 13.5 L at 455 K, what is the pressure? atm 10 2 attempts left Check my work Enter your answer in the provided box. 0.25 points Determine the pressure of N2 (in atm) under the following conditions. 0.26 mol at 23°C in 23.4 L eBook atm Print Be sure to answer all parts. A sample of natural gas at 650 mm Hg contains 79%...
Can someone explain me ..how they got the 29.o kg bda pls 254 Chapter 6 Multiphane...
Can someone explain me ..how they got the 29.o kg bda
pls
254 Chapter 6 Multiphane Sysicoms Percentage Saturation (Percentage Humidity) -n) × 100% ที่ (P-pp at a given temperature and pressure, you fraction of the vapor solve the defining equation to cakulate the partial peessure or mo ia the gas; thercafter, degrees of superheat. quantities for a gas If you are given amy of these q to given previously to calculate the dew point and you can use the...
QUESTIONS TO ANSWER: Prepare a table of all chemicals used with the structure and purpose of...
QUESTIONS TO ANSWER:
Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
data. Please let me know how I Would do this if I did)...
please find the purpse, Discussion, conclusion un 27 Phoenix June 20 8:10 PM a 35AEXPERIMENT 35A...
please find the purpse, Discussion, conclusion
un 27 Phoenix June 20 8:10 PM a 35AEXPERIMENT 35A Triphenylmethanol PROCEDURE ether MgBr+ C-OH + MgBr(OH) OMgBr 0 Addct Addition of Benzophenone While the phenylmagnesium bromide solution is being heated and stirred under reflux, make a solution of 1.09 g benzophenone in 2 mL of anhrudrous ether in a 5-mL conical vial. Cap the vial until the reflux period is over. Once the Grignard reagent is cooled to room temperature, draw some of...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in benzoic acid, pKa 4.19, and is 0.11M in sodium benzoate? 2) Find the %-diss of a buffer if the pKa 7.10 and the pH of the buffer is 7.50. 3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M Na0H. a) What is the equivalence point volume and ½ equivalence...
Grignard Reaction with a Ketone: Triphenylmethanol Introduction: The purpose of this lab is to prepare phenylmagnesium...
Grignard Reaction with a Ketone: Triphenylmethanol Introduction: The purpose of this lab is to prepare phenylmagnesium bromide, a Grignard reagent, and react it with benzophenone to give triphenylmethanol. Grignard reagents are very reactive and must be synthesized in an environment free of water or any other source of potential proton donor. Once made, the Grignard reagent will do a nucleophilic attack on the carbonyl carbon of the ketone, benzophenone. The result is an alkoxide that is then protonated to give...
please help!!!!
A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to cool the gas? pple A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity...
A 9.82 -g sample of pure liquid is vaporized at 193 °C and 172 torr. At these conditions it occupies 5.43 L. What is the molar mass of the substance? g/mol Calculate the density of nitrogen at 0.649 atm and 43°C. Density = g/L g/L at a pressure of 1.41 atin and a terapuratute A sample of krypton gas, Kr, has a density of 35°C.
A 233.9 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to condense the gas?
pls i need a clear hand writting
If a cylinder contains 15.6 g of CO2 in 13.5 L at 455 K, what is the pressure? atm 10 2 attempts left Check my work Enter your answer in the provided box. 0.25 points Determine the pressure of N2 (in atm) under the following conditions. 0.26 mol at 23°C in 23.4 L eBook atm Print Be sure to answer all parts. A sample of natural gas at 650 mm Hg contains 79%...
Can someone explain me ..how they got the 29.o kg bda
pls
254 Chapter 6 Multiphane Sysicoms Percentage Saturation (Percentage Humidity) -n) × 100% ที่ (P-pp at a given temperature and pressure, you fraction of the vapor solve the defining equation to cakulate the partial peessure or mo ia the gas; thercafter, degrees of superheat. quantities for a gas If you are given amy of these q to given previously to calculate the dew point and you can use the...
QUESTIONS TO ANSWER:
Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
data. Please let me know how I Would do this if I did)...
please find the purpse, Discussion, conclusion
un 27 Phoenix June 20 8:10 PM a 35AEXPERIMENT 35A Triphenylmethanol PROCEDURE ether MgBr+ C-OH + MgBr(OH) OMgBr 0 Addct Addition of Benzophenone While the phenylmagnesium bromide solution is being heated and stirred under reflux, make a solution of 1.09 g benzophenone in 2 mL of anhrudrous ether in a 5-mL conical vial. Cap the vial until the reflux period is over. Once the Grignard reagent is cooled to room temperature, draw some of...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in benzoic acid, pKa 4.19, and is 0.11M in sodium benzoate? 2) Find the %-diss of a buffer if the pKa 7.10 and the pH of the buffer is 7.50. 3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M Na0H. a) What is the equivalence point volume and ½ equivalence...
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