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How many moles of sodium hypobromite (NaBrO) should be added to 1.00 L of 0.055 M hypobromous acid (HBrO) to form a buffer solution of pH 8.95? Assume that no volume change occurs when the NaBrO is added.
A solution is prepared by dissolving 179 g sucrose (C12H22O11) in enough water to produce 1.15 L solution. What is the molarity of this solution?
What volume of 0.1066 M Na2S2O solution would be requried to react with 24.32 mL
how many grams of sucrose C12H22O11 must be added to 522g of water to give a solution a vapor pressure 2.0mmHg less than that of pure water at 20 degrees celsius
Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
An iron bar of mass 869 - g cools from 90 oC to 5 oC Calculate the heat released (in kilojoules) by the metal. ( specific heat = 0.44 J/(g. c)
Which one of the following derivatives of ethane has the highest boiling point?
What mass of the hydrate could be recovered from the solution? When separated from a H 2 O solution, copper sulphate forms a hydrate with 5
3.00×10-3 mol of HBr is dissolved in water to make 17.0 L of solution. What is the concentration of hydroxide ions, OH-, in this solution?
Briefly explain why you can make the assumption that all of the SCN- ion in solutions S2-S6 has been converted to FeNCS^2+ ion.
What is the molarity of a solution of calcium hydroxide, Ca(OH)2, if 339 mL is neutralized with 41.51 mL of a 0.304 M HCl?
The equilibrium constant Kc for this reaction is greater than one. based on this information, which of the following statements is correct. A- anion is a stronger acid than HB.
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
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