Homework Answers
1) boiling point of ethanol (78°C) is lesser than the boiling point of water (100°C) , means ethanol will bolis more easily than water and therefore it's vapour pressure will also be higher, so at any particular temperature vapour pressure of ethanol will be higher than water.
Second option is correct.
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can you please solve all three questions. TIA
The boiling point of water at 1 atm...
can you answer both questions please. TIA In this lab, you will start off by calculating...
can you answer both questions please. TIA
In this lab, you will start off by calculating the number of moles of air molecules inside a flask containing 10 mL of water by cooling the flask down to near 0°C and assuming the vapour pressure of water is negligible at that temperature If the volume of the air inside the flask is 148.2 ml, the gas pressure sensors reads 99.6 kPa and the temperature sensor reads 2.7 °C, how many moles...
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol...
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: O Water O They will have the same vapour pressure O Ethanol Check
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol...
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: O They will have the same vapour pressure O Water O Ethanol Check
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol...
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: They will have the same.vapour pressure Ethanol Water Check
For the gas constant, use R = 8.314 J/mol-K For Avogadro's number, use N_0 = 6.022...
For the gas constant, use R = 8.314 J/mol-K For Avogadro's number, use N_0 = 6.022 times 10^23 molecules. Be careful of units! All the conversions you need are in the information section of the lab. Suppose the volume of the syringe is 47.5 cc. You measure the pressure as 1.58 atm, and the temperature as 19.8 degree C. Assume: the diameter of the plunger on the syringe is 1.44 cm. Find the number of moles of gas in the...
8. What is the final boiling point of a 1.25 molal solution of sugar in water?...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
please show steps. thanks ! Experiment 19 Gas Stoichiometry and the Gas Laws The relationship between...
please show steps. thanks !
Experiment 19 Gas Stoichiometry and the Gas Laws The relationship between the physical properties of a gas, and the moles, is given by the “Ideal Gas Law:" PV=nRT where n-number of moles R=the ideal gas constant: 0.0821 atm L mole 'Kor 62.4 L torr molek In this experiment, the theoretical yield of gas, will be compared to the experimental yield. The reaction of aluminum with hydrochloric acid produces hydrogen according to the balanced equation below....
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
1. What is the boiling point of a 3.0 m Ca(NO3)2 solution in water? Where: the...
1. What is the boiling point of a 3.0 m Ca(NO3)2 solution in water? Where: the change in boiling point (ΔTb) = mKb m is the molality of the solution Kb (the boiling point constant) for water is 0.512 2. The freezing point of ethanol (C2H5OH) is -114.6 °C. What is the freezing point (°C) of a solution prepared by dissolving 50.0 g of glycerin a nonelectrolyte) in 200.0 g of ethanol? Where: ΔTf = mKf The molal freezing point depression...
can you answer both questions please. TIA
In this lab, you will start off by calculating the number of moles of air molecules inside a flask containing 10 mL of water by cooling the flask down to near 0°C and assuming the vapour pressure of water is negligible at that temperature If the volume of the air inside the flask is 148.2 ml, the gas pressure sensors reads 99.6 kPa and the temperature sensor reads 2.7 °C, how many moles...
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: O Water O They will have the same vapour pressure O Ethanol Check
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: O They will have the same vapour pressure O Water O Ethanol Check
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: They will have the same.vapour pressure Ethanol Water Check
For the gas constant, use R = 8.314 J/mol-K For Avogadro's number, use N_0 = 6.022 times 10^23 molecules. Be careful of units! All the conversions you need are in the information section of the lab. Suppose the volume of the syringe is 47.5 cc. You measure the pressure as 1.58 atm, and the temperature as 19.8 degree C. Assume: the diameter of the plunger on the syringe is 1.44 cm. Find the number of moles of gas in the...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
please show steps. thanks !
Experiment 19 Gas Stoichiometry and the Gas Laws The relationship between the physical properties of a gas, and the moles, is given by the “Ideal Gas Law:" PV=nRT where n-number of moles R=the ideal gas constant: 0.0821 atm L mole 'Kor 62.4 L torr molek In this experiment, the theoretical yield of gas, will be compared to the experimental yield. The reaction of aluminum with hydrochloric acid produces hydrogen according to the balanced equation below....
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
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