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Assume that 50.0 mL of 0.100M HCl was added to 125 mL of 0.100M Sodium Acetate. Is the resulting solution a buffer? Why or why not? Calculate the pH of the resulting solution. The Ka for acetic acid is 1.75 x 10^-5.
The absence of an alkene C=C IR stretch is definitive evidence that a compound lacks an alkene functional group.
Calculate the amount of water (in grams) that must be added to each of the following substances to produce the indicated solution 8.10g of urea(NH2)2CO in the preparation of 21.8 percent by mass solution 30.4g MgCl2 in the preparation of a 4.8 per..
Glycerol HOCH2CH(OH)CH2OH is a nonvolatile, water-soluble material. its density is 1.25 g/mL. Predict the vapor pressure of a solution of 2.40 x 10^2 mL of glycerol, in 395 mL of water, at the normal boiling point of water.
What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5x10^-10.
Write a net ionic equation accounting for this. For the reaction in part a, write the equilibrium constant expression and calculate the equilibrium constant from a consideration of Kb and Kw.
What is the molar mass of an unknown gas if the density of that gas is 0.726 grams/liter at a pressure of 0.634 atm and a temperature of
the solubility of n2 in blood at 37 oc and at a partial pressure of 0.80 atm is 5.6 x 10-4 moll. a deep-sea diver
Calculate the solubility (in grams per 1.00*10^2mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.S1= 1.2*10^-8 g/(1.00*10^2mL)
Both solutions were initially at 35.00°C and the temperature of the resulting solution was recorded as 37.00°C, determine the ??H°rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCl.
If a total of 13.5 mol of NaHCO and 4.5 mol of C H O react, how many moles of CO and Na C H O will be produced? 3NaHCO (aq) + C H O (aq) 3CO (g) + 3H O(s) +Na C H O (aq).
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of lead is 715.0 kJ/mol.
The density of the solution is 0.993 g/mL. What is the molarity and molality of acetone in this solution?
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