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What is the strongest attractive force that must be overcome in order to do the following: a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride c) boil pure liquid methanol (CH3OH) d) sublime pure solid carbon dioxide e) melt pure solid potassium metal A. a) dipole-dipole b) dispersion c) H-bond d) dipole-dipole e) dispersion B. a) covalent bond b) polar covalent bond c) H-bond d) polar covalent bond e) dispersion C. a) dispersion b) dipole-dipole c) H-bond d) dispersion e) metallic bond D. a) dispersion b) dispersion c) dipole-dipole d) dispersion e) metallic bond
The minimum energy required to cause the photo electric effect in potassium metal is 3.69*10^-19 J. will photoelectrons be produced when light shines on the surface of potassium?if 400 nm radiation is shone on potassium,what is the velocity of the..
If 9 g of Kr initially at 0.2 bar and 15 L is brought to 0.49 bar and 5L, what is the overall change in enthalpy of this process? Assume that Kr is an ideal gas.
Write a formula for the conjugate base formed when each of the following behaves as a bronzed acid.
propose two reasons why the results of some of your reactions in this lab do not agree with what is predicted using the established solubility riles.
why differential pulse polarography is the most sensitive technique among the different modern types of polarography
Chloropropionic acid, ClCH2CH2COOH is a weak monoprotic acid with Ka = 7.94 x 10-5 M. Calculate the pH at the equivalence point in a titration 38.2 mL of 1.05 M chloropropionic acid with 0.90 M KOH
How many moles of NaF must be added to 100.00mL of 0.15 M HF to prepare a buffer with pH=3.30. Ka(HF)=7.1*10^-4
Calculate the volume of 6m NaOH required to react completely with 1.50 g Methyl salicylate. How much of the 6M NaOH that was used was in excess of the theoretical amount? Used 15ml NaOH
Lactic acid, HC3H5O3, is a monoproctic acid that forms when milk sours. An 18.50 ml sample of a solution of lactic acid required 17.52 ml of 0.1550 M NaOH to reach an end point in titration.
What is the pH of a solution that is 0.125 M in methylamine (CH3NH2) and 0.175 M in methylamine chloride (CH3NH3Cl)?
Following a high carbohydrate meal, conversion of fructose-6-phospahte to fructose-1,6-bisphosphate will be catalyzed by- phosphofructokinase-2, which is activated when insulin causes dephosphorylation of phosphofructokinase-1
Draw and name all the possible constitutional and stereoisomers of the monochlorinated products formed by the free-radical chlorination of 2-methylbutane. Count any pair of enantiomers as two different products
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