Determine the fraction of ionization of HX if a solution prepared by dissolving

Question

Determine the fraction of ionization of HX if a solution prepared by dissolving 0.020 mol of HX in 115 g of water freezes at -0.47 degree C. The molal freezing-point-depression constant of water 1.86 degree C/m. A) 1.45 B) 0.044 C) 0.45 D) 0.348 E) 0.30 A 50.0-g sample of liquid water at 25.0 C is mixed with 29.0 g of water at 45.0 degree C. The final temperature of the water is degree C. The specific heat capacity of liquid water is 4.18 J/g-K. A) 142 B) 27.6 C) 32.3 D) 35.0 E) 102 A nonpolar bond will form between two atoms of electronegativity. A) similar, different B) identical, equal C) Identical, different C) different, different E) different, opposite The first ionization energies of the elements as you go from left to right across a period of the periodic table, and as you go from the bottom to the top of a group in the table. A) Increase, increase B) increase, decrease C) decease, increase D) decrease, decrease E) are completely unpredictable Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The energy of one photon of this light is J.

Explanation / Answer

76 C

77 C

78 B

79 A

80 E

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