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What is the concentration of Ba(OH)2 solution if 22.0 mL of 0.200 M H3PO4 is needed to neutralize 38.0 mL of the Ba(OH)2 solution?
Calculate the vapor pressure of this solution at 25.0 degrees C. At this temperature, the vapor pressure of pure water is 23.8 mmHg.
What mass of Fe(OH)3 would be produced by reacting 75.0mL of a 0.0810M Fe(NO3)3 solution with 125 mL of a .150 M NaOH solution.
Identify the element or elements that undergo
An aqueous solution is six percent by mass methanol,, and has a density = 0.988 g/mL. Determine the molarity of ethanol in the solution.
You have prepared a saturated solution of X at 20C using 27.0 g of water. How much solute can be dissolved if the temperature is increased to 30 C?
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
Calculate the boiling point of a solution of 500.0 g of ethylene glycol (C2H6O2) dissolved in 500.0 g of water. Kf = 1.86°C/m and Kb = 0.512°C/m. Use 100°C as the boiling point of water.
One of those bands consists of radio waves with a wavelength near 20.m . Calculate the frequency of these radio waves. Be sure your answer has the correct number of significant digits.
How many milliliters of 0.100 M NaOH are required to react completely with a sample of the solid carboxylic acid lactic acid, CH3CH(OH)COOH, with a mass of 0.1351 g (molar mass of lactic acid is 90.08 g/mol) The acid is monoprotic, only the last H..
To learn how to calculate the solubility from Ksp and vice versa. Consider the following equilibrium between a solid salt and its dissolved form (ions) in a saturated solution:
What volumes of sulfur dioxide and dihydrogen sulfide gases are necessary to produce 11.4 L of water vapor? The balanced equation is SO2 + 2 H2S à 3 S + 2 H2O.
How many different kinds of polypeptides, each composed of 12 amino acids, could be synthesized using the 20 common amino acids?
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