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The enthalpy of hydration associated with anhydrous LiI forming LiI?2H2O is -45.53 kJ/mol. The enthalpy of solution for LiI?2H2O is -14.77 kJ/mol. What is the enthalpy of solution for LiI
Enough of a monoprotic acid is dissolved in water to produce a 0.0194 M solution. The pH of the resulting solution is 6.26. Calculate the Ka for the acid.
Chlorine gas is known to have a density of 3.17 g/L at standard temperature and pressure. What would be the volume of a 4.6 gram sample of chlorine gas at standard temperature and pressure?
Draw the hydrogen on the chiral center. Make sure you indicate the chiral center through stereo wedges , and that there are no other bonds between the two bonds drawn with the stereo wedges.
What is the molecular, complete ionic equation, and net ionic reaction for the following. I get stuck trying to figure out the solubility. NaOH + HC2H3O2 -> BaCO3 + HNO3 -> K2S + HCl ->
Alpha helices are a type of secondary structure in proteins. What is the length of a 23-kDa single-stranded ?-helical protein segment
55.0 mL of a 1.70 M solution is diluted to a volume of 288 mL. A 144 mL portion of that solution is diluted using 181 mL of water. What is the final concentration?
Glucose oxidation in the human body releases 6 mol of carbon dioxide per mole of glucose. How many moles of glucose are required to produce the amount of carbon dioxide
100 ml of 1 M acetic acid (pKa 4.76) are placed in a flask. The following volumes of 1 M KOH are added, and the total volume is adjusted to one liter with water.
An aqueous CaCl2 solution has a vapor pressure of 83.0 mmHg at 50 degrees celsius . The vapor pressure of pure water at this temperature is 92.6 mmHg.
Draw a structure consistent with the following set of data: a hydrocarbon with a molecular ion at m/z = 68 and an IR absorptions at 3310
Calculate the pressure exerted by 1.0 mol C2H6 behaving as (a) a perfect gas, (b) a van der Waals gas when it is confined under the following conditions: (i) at 273.15 K in 22.414 dm3, (ii) at 1000 K in 100 cm3.
Write a balanced net ionic equation for the reaction of KMnO4 with the saturated solution of CdC2O4 in diluted H2SO4. The major products are Mn2+ and CO1
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