1.) Which solution has lower vapor pressure?A.) a 0.2M KNO3

Get college assignment help at Smashing Essays Question 1.) Which solution has lower vapor pressure?A.) a 0.2M KNO3 SolutionB.) all four solutions given have the same vapor pressureC.) a 0.4M Sucrose solutionD.) a 0.4M CH4 solutionE.) a 0.2M NaCl solution 2.) List the following aqueous solutions in order of their respective freezing points (from lowest to highest): 0.050m Cacl2, 0.15 m NaCl, 0.10 m C12H22O11

A piece of unknown metal weighs 217 g. When the

Question A piece of unknown metal weighs 217 g. When the metal piece absorbs 1.43 kJ of heat, its temperature increases from 24.5C to 39.1 C. Determine the specific heat of this metal, and predict its identity

All are bacterocidal except?RifampinIsoniazid />EthambutolPyrazinamide

Question  All are bacterocidal except?RifampinIsoniazid />EthambutolPyrazinamide

Macrolide antibiotics interferes with?Cell wall synthesisDNA replicationTranslocation processNone

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All cephalosporins are excreted by kidney except?Cephalexin />CefoperazoneCefotaximeCefuroxime

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Flouroquinolones inhibit?Bacterial DNA helicaseBacterial DNA gyraseBothNone

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Can you help with this? It’s been wrong. ATTACHMENT PREVIEW

Question Can you help with this? It’s been wrong. ATTACHMENT PREVIEW Download attachment ch1016bc.jpg

In ideal versus real gases, I am having trouble with

Question In ideal versus real gases, I am having trouble with this area. I have included information from part b- but I need help figuring out part c. Thank you. Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment ch108bforc.jpg Part B Review | Constants | Periodic Table The ideal gas law describes the relationship among the volume of an If 1.00 mol of argon is placed in a 0.500-L container at 28.0 C , what is the difference between the ideal pressure (as predicted by the ideal gas law) and the real ideal gas (V), its pressure (P), its absolute temperature (T), and pressure (as predicted by the van der Waals equation)? For argon, a = 1.345 (L . atm) /mol and b = 0.03219 L/mol. number of moles (n). PV = nRT Express your answer to two significant figures and include the appropriate units. View Available Hint(s) Under standard conditions, the ideal gas law does a good job of approximationg these properties for any gas. However, the ideal gas law does not account for all the properties of real gases such as Pideal – Preal = 2.0 atm intermolecular attraction and molecular volume, which become more pronounced at low temperatures and high pressures. The van der Waals equation corrects for these factors with the constants a and b, Submit Previous Answers which are unique to each substance: ( P an? )(V – nb) = nRT Correct At high pressures and low temperatures the assumptions of the ideal gas law, which postulate that gas particles are small particles that act independently of The gas constant R is equal to 0.08206 L . atm/(K . mol). one another, begin to break down. Significant Figures Feedback: Your answer 1.98 atm was either rounded differently or used a different number of significant figures than required for this part. Part C ATTACHMENT PREVIEW Download attachment ch108c.jpg t Ideal versus Real Gases Match the words and compounds in the left column to the appropriate blanks in the sentences on the right. Make cei submitting your answer. I ReView l Constants | PeriodicTable . ViewAvailable Hintfs) The ideal gas law describes the relationship among the volume of an ideal gas (V), its pressure (P) its absolute temperature (T), and number of moles (n) PV=nRT Under standard conditions, the Ideal gas law does a good job of The percent difference between the ideal and real gas is approximating these properties for any gas. However, the ideal gas law does not account for all the properties of real gases such as weak intermolecular intermolecularattraction and molecular volume, which become more forces pronounced at low temperatures and high pressures The van o‘er Waais equation corrects for these factors with the constants a and b, 4 007 which are unique to each substance: ‘ ° — This ditference is considered Significant, and is best explained because argon atoms have relatively |:| . lfthe volume ofthe container were increased to 200 L‘ you would expect the percent difference between the ideal and real gas to E , decrease (P (17,12) (V—nb) =nRT 4.09% small molecular volumes The gas constant B is equal to [108206 L – atm/(K – D101) 4.17% large molecular volumes strong intermolecular forces

This PART F is driving me crazy. CAn you help

Question This PART F is driving me crazy. CAn you help me with it? I have included all the previous screen shots. src=”/qa/attachment/8322991/” alt=”13ef.jpg” /> Attachment 1 Attachment 2 Attachment 3 ATTACHMENT PREVIEW Download attachment 13ab.jpg Problem 6.85 Part A Review | Constants | Periodic Table The rays of the Sun that cause tanning and burning are in the Calculate the frequency of light that has a wavelength of 330 nm ultraviolet portion of the electromagnetic spectrum. These rays are categorized by wavelength: So-called UV-A radiation has wavelengths in the range of 320-380 nm, whereas UV-B radiation has wavelengths AEd ? in the range of 290-320 nm. V = Submit Request Answer Part B Calculate the energy of a mole of 330 – nm photons. IVO AEd ? E= kJ/mol Submit Request Answer ATTACHMENT PREVIEW Download attachment 13cd.jpg Submit Request Answer Review | Constants | Periodic Table The rays of the Sun that cause tanning and burning are in the ultraviolet portion of the electromagnetic spectrum. These rays are Part C categorized by wavelength: So-called UV-A radiation has wavelengths in the range of 320-380 nm, whereas UV-B radiation has wavelengths in the range of 290-320 nm. Which are more energetic, photons of UV-A radiation or photons of UV-B radiation? O photons of UV-A radiation O photons of UV-B radiation Submit Request Answer Part D The UV-B radiation from the Sun is considered a greater cause of sunburn in humans than is UV-A radiation. Is this observation consistent with your answer to part (c) ? O yes no Submit Request Answer ATTACHMENT PREVIEW Download attachment 13ef.jpg Problem 10.72 – Enhanced – with Feedback What is the partial pressure in atm of N2 for the mixture from Parts A through C if it is held in a 15.60 L vessel at 14 C? Express your answer using three significant figures. ? P = atm Submit Request Answer Part F What is the partial pressure in atm of H2 for the mixture from Parts A through C if it is held in a 15.60 L vessel at 14

please help, write the balanced equation for the complete combustion

Question please help, write the balanced equation for the complete combustion of methanol and determine the energy change per mole for the combustion of methanolplease show work

Can you response the following questions about Sodium Hydroxide: Please

Get college assignment help at Smashing Essays Question Can you response the following questions about Sodium Hydroxide: Please explain your response.

The triclinic crystal system pictured possess how many faces? src=”/qa/attachment/8323217/”

Question The triclinic crystal system pictured possess how many faces? src=”/qa/attachment/8323217/” alt=”Screen Shot 2019-07-02 at 11.40.59 PM.png” /> ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-02 at 11.40.59 PM.png

The tetragonal crystal system below possesses how many faces? ATTACHMENT

Question The tetragonal crystal system below possesses how many faces? ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-02 at 11.41.56 PM.png

1.An increase in temperature can disturb the liquid-vapor equilibrium.TRUEFALSE />2.Removing

Question 1.An increase in temperature can disturb the liquid-vapor equilibrium.TRUEFALSE />2.Removing some amount of thermal energy from a liquid can decrease the liquid’s vapor pressure.TRUEFALSE3.One open container of nail polish remover is left in an air-conditioned room and another identical container is left in a warm room. The rate of evaporation in the air-conditioned room will be:a.Slower because less thermal energy will produce lower vapor pressure.b.The same as in a non-air conditioned room, because the temperature does not affect the evaporation rate.c.Faster because less thermal energy will result in higher vapor pressure.d.None of the above4.Explain why the vapor pressure exhibited in a bottle of water increases when the temperature increases.5.Boiling occurs when the liquid’s vapor pressure is less than the atmospheric pressure.TRUEFALSE6.While camping up at Haloooo Mountain (5,500 feet above sea level), it generally takes Sandy about the same amount of time to boil water for her soup as it takes to make a sandwich. This week, Sandy is camping at a trail that is only about 200 feet above sea level. Sandy is very hungry and wants something to eat immediately. Should she make the soup or sandwich? Which would be ready more quickly and why?

Which of the following defines fusion? Solid –> GasSolid –>

Question Which of the following defines fusion?        Solid –> GasSolid –> LiquidLiquid –> solidGas –> Solid

Which of the following NSAIDS has greater inhibitory selectivity for

Question Which of the following NSAIDS has greater inhibitory selectivity for COX-1 than COX-2? A)Flurbiprofen B)Indomethacin C)Diclofenac D)Celecoxib

Which of the following statements about NSAIDS is true?A) Most

Question Which of the following statements about NSAIDS is true?A) Most NSAIDS are weak acidsB)Most NSAIDS are metabolised by the liver into inactive metabolites C)Oxicams tend to have the longest half-lives of D)all NSAIDs All of the above

NSAIDS increase the risk of CNS adverse effects when taken

Question NSAIDS increase the risk of CNS adverse effects when taken with which group of antibiotics? A)Macrolides B)Penicillins C)Aminoglycosides D)Quinolones

ACE inhibitors should be avoided in women who are, or

Question ACE inhibitors should be avoided in women who are, or are likely to, become pregnant. True False 

Attached are the questions. All answers, unless otherwise specified, are required to

Attached are the questions. All answers, unless otherwise specified, are required to be short answer (3-7 sentence). If references are used they must be in APA format.

What would the expected temperature change be (in oF) if

Question What would the expected temperature change be (in oF) if a .5 gram sample of water released 50.1 J of heat energy? The specific heat of liquid water is 4.184 J/g-oC

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