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A 0.042 M solution of a monoprotic acid is 12 percent ionized. Calculate the ionization constant of the acid.
Which is the excess reactant in the given reaction Na 2 S + CuSO 4 Na 2 SO 4 + CuS it is given that you start this reaction wit 15.5 grams of Sodium sulfide and 12.1 grams of copper sulphate?
How many moles of KMnO4 are present in 25.0 mL of a 0.0900 M solution?
Which of the following atoms is least likely to form an ion. A) fluorine B) magnesium C) silicon D) sodium 2.For which of the following atoms do we not try to apply the octet rule? A) oxygen B) nickel C) sodium D) xenon
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
calculate the number of grams of urea that must be added to 150 g water to give solution whose vapor pressure is 2.5
For the following precipitation reactions, calculate how many grams of the first reactant are necessary to completely react with 54.0 grams of the second reactant.
The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 103 Calories. If an athlete expends 1975 kJ/h, how long does she have to play to work off 1.0 lb of body fat?
An ocean wave has a wavelength of 4.000 meters and a frequency of 7.00 waves per minute. What is this wave's velocity in meters/minute
Number of stereoisomers possible for each of the following substances. Draw them, and name each by the R-S and E-Z conventions.
calculate the molality (m) of the following solutions: a)65.0 g of glucose, C6H12)6, a nonelectrolyte, added to .112 kg of water. b).320 mol of sucrose, C12H22O11, a nonelectrolyte, dissolved in 1.50 kg of water
How many independent linear combinations are possible for four 1s orbitals? (b) Draw pictures of the linear combinations of H1s orbitals for a hypothetical linear H4 molecule.
How much energy (in kilojoules) is required to convert 245 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL ?
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