ChemIILabReport

Can you help me out with this one please. Thank you.

OResources The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T(K) P(kPa) 3.34 225 675 8.82 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, AlHp, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the z-values and four significant figures in the y-values. point 1: z point 1: y= point 2: z point 2: y= Determine the rise, run, and slope of the line formed by these points. rise run slope What is the enthalpy of vaporization of this liquid? J/mol can pa co tu

The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T (K) P (kPa) 275 3.37 625 8.22 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, ΔHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x‑values and four significant figures in the y‑values. point 1: x=   point 1: y=   point 2: x=   point 2: y=     Determine the rise, run, and slope of the line formed by these points.   rise= run= slope=     What is the enthalpy of vaporization of this liquid? ΔHvap= __________ J/mol

6. The vapor pressure of propanone is 15.40 kPa at 10°C and 81.65 at 50°C. Calculate the temperature at which propanone will boil at a pressure of 101.3.

с 1 of 15 > The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T(K) P (kPa) 225 3.89 625 8.02 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, A Hap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x-values and four significant figures in the y-values. point 1: x = 4 int 2: x = R Determine the rise, run, and slope of the line formed by these points. FL G Search or type URL V 07 20 % 5 T G 6 MacBook Pro B Y H & 7 N U J *00 8 point 1: y = M point 2: y = I ( 9 K O V- H * ) 0 L command P > : ; I option [ I } 1 delete ret

please explain

Digital Resources for Smartwork Direct Smartwork5 * Favorites < Module 4a: IMFS an... 画 03/14/21 ocramer5852@mail.kvcc.edu SCORE out of 15 Physical properties such as melting point, boiling point, and solubility are all dependent on the type of interparticle forces a substance experiences. Identify the type of interparticle force that has the greatest influence on the physical properties for each substance. Items (6 items) (Drag and drop into the appropriate area below) KI NH2OH CaCl2 PCI3 CH4 Cl2 Categories Dipole-dipole Forces Hydrogen Bonding lonic Bonding Dispersion Forces Drag and drop here Drag and drop here Drag and drop here Drag and drop here A SUBMIT ANSWER « 03/20

6.The diagram below is an example of Liquid-Vapor(LV) Pressure (P vs Mole Fraction).Fill out the question marks with correct number of degrees of freedom. LV Pressure – Composition (LV – PZ) Phase Diagram | How to read this phase diagram: XA = 0 Xe = 1 P = Pg Xx = 1 • We can designate the fraction of A and B in the liquid be XA and Xa, while the fraction of A and B in the gas phase be ya and Yg- XB = 0 F=? Liquid Phase F=? • Z, is the composition of A: • Below the vapor curve, or the bubble curve, A is pure vapor, and Z, = VA • Above the liquid curve, or the dew curve, A is pure liquid, and Z, = Xa P P= P F=? Vapor Phase YA = 1 YA = 0 Ya = 1 ZA Ys = 0

The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T(K) P (kPa) 275 3.29 675 7.84 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, AHvap for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x-values and four significant figures in the y-values. point 1: x = point 2: x = rise = Determine the rise, run, and slope of the line formed by these points. slope = What is the enthalpy of vaporization of this liquid? AHvap= point 1: y = J/mol point 2: y = run =

2. All liquids have characteristic vapor pressure that vary with temperature. The characteristic vapor pressure for pure water at 22°C is 19.827 mm Hg and at 30.0°C is 31.824 mm Hg. Use these data to calculate the change in enthalphy per mole for the vaporization

Please answer question 8 part A and B

12. A 1.50 g of heptane (C7H16) with a vapor pressure of 35.5 torr at 20.0 °C is placed in a 2.50 L vessel at 20.0 °C. Assume that the vessel is closed and the volatile substance has reached equilibrium with its vapor, how much liquid heptane (in grams) is left?

The standard enthalpy of vaporization (H°vap) of carbon tetrachloride (CCl4) is 34.6 kJ/mol.The normal boiling point of carbon tetrachloride is 76.5°C.Calculate the vapour pressure of carbon tetrachloride at 62.0°C.

Energy to sublime Na(s) = 109.0 kJ/molElectron affinity of Cl(g) = -349.0 kJ/molFirst ionization energy of Na(g) = 495.0 kJ/molBond energy of Cl2(g) = 240.0 kJ/molΔHrxn for Na(s) + 1/2 Cl2(g) → NaCl(s) = -411.2 kJ/mol   Determine the lattice energy of NaCl(s), using the data provided.

Can you please help me understand how to get the answer to this question? 10. The value of (delta)Hvaporation of substance X is 65.7 kJ/mol, and its normal boiling point is 62.5 degrees Celsius. Calculate (delta)S, (delta)Ssurr, and (delta)G for th evaporation of one mole of this substance at 62.5 degrees Celsius and 1 atm.

Consider the following equation:             ln(Pvap) = −[(∆Hvap)/(R)]([ 1/(T)]) + C        (Note that Pvap is the vapour pressure in atm.) The following graph was obtained for a pure volatile liquid substance. (See attached graph/image) Determine the enthalpy of vaporization for this substance.

The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T (K) P (kPa) 275 3.05 525 6.96 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, AHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x-values and four significant figures in the y-values. point 1: a = point 1: y = point 2: y = point 2: z = Determine the rise, run, and slope of the line formed by these points. rise = run slope = What is the enthalpy of vaporization of this liquid? AHvap J/mol

A liquid has a vapor pressure of 32.8 kPa at 26.4 °C. Its vapor pressure at 96.5 °C is 75.4 kPa. What is the enthalpy of vaporization (AHvap) for the liquid in kJ?

References Use the References to access important values if needed for this question. The vapor pressure of liquid acetone, CH3COCH3, is 100. mm Hg at 281 K. A 0.128 g sample of liquid CH3COCH3 is placed in a closed, evacuated 500. mL container at a temperature of 281 K. Assuming that the temperature remains constant, will all of the liquid evaporate? What will the pressure in the container be when equilibrium is reached? mm Hg Submit Answer

The vapor pressure of the liquid NH3 is measured at different temperatures. The following vapor pressure data are obtained. Temperature, K P, mmHg 217.1 234.7 223.4 588.1 Calculate the enthalpy of vaporization (AHvap) in kJ/mol for this liquid.

The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. T(K) P (kPa) 275 3.46 675 7.80 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, AH vap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x-values and four significant figures in the y-values.

At 0°C the student measures the total pressure in the flask to be 102.1 K PA. At 0°C the student measures the total pressure in the flask to be 102.1 K PA. At 5°C the student read the total pressure in the flask to be 116.9 K PA. What is the vapor pressure of water at 25°C if it assumed that water has no vapor pressure at 0°C

The vapor pressure of ethanol, CH3CH2OHCH3CH2OH, at 40.0 °C is 17.88 kPa. If 2.10 g of ethanol is enclosed in a 3.00 L container, how much liquid will be present? mass of liquid:  g

Can you explain this problem? Where did the P1 came from? And can you redo the calculation?

Qb 11.

At 0.00 °C, hexane, C6H₁4, has a vapor pressure of 45.37 mm Hg. Its AHvap is 30.1 kJ mol-¹. What is the vapor pressure of hexane at 39.0 °C? The vapor pressure of hexane at 39.0 °C is mm Hg.

Calculate the cryoscopic and ebullioscopic constants for liquid bromine, Br2. You will need the following data: 8.89 K/molal (Kf); 4.95 K/molal (Kb)ΔfusH: 10.57 kJ/mol; MP: 27.2°CΔvapH: 29.56 kJ/mol; BP: 58.78°C

4. The vapor pressure of ethanol is 115 torr at 34.9 °C. If AHvap of ethanol is 40.5 kJ/mol, calculate the temperature (in °C) when the vapor pressure is 760 torr.

The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in the table. Т К) Р (КРа) 275 3.65 775 7.14 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, AHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x-values and four significant figures in the y-values. point 1: x = point 1: y = point 2: x = point 2: y = Determine the rise, run, and slope of the line formed by these points.