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A mixture of Ar and N2 gases has a density of 1.592 g/L at STP. What is the mole fraction of each gas?
A 36.3 mL aliquot of 0.0529 M H2SO4 (aq) is to be titrated with 0.0411 M NaOH (aq). What volume (mL) of base will it take to reach the equivalence point?
The pH of a 0.40 M HF(aq) solution is 1.93. Calculate the change in pH when 0.356 g of sodium fluoride is added to 50.0 mL of the solution. Ignore any change in volume.
what is the concentration m of ch3oh in a solution prepared by dissolving 16.8 g of ch3oh in sufficient water to give
Calculate the cost of 40 mL of sulfuric acid. given that Sulfuric acid (18 M) = $54.30/2.2 L
calculate the reaction rate of potassium iodide and hydrogen peroxide to include the order of reaction.
NH4Cl need to be added to 1.90L of a 0.400M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.55? Kb for ammonia is 1.8 x 10^-5.
Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced?
A 3.664 g sample of a monoprotic acid was dissolved in water. It took 20.27 mL of a 0.1578 M sodium hydroxide solution to neutralize the acid. Calculate the molar mass of the acid.
calculate the final concentration of each of the follwing 0.50 l of a 4.0 m hno3 solution is added to water so that the
Multiple choice questions in organic chemistry - Which of the following statements are true about the processes of melting and freezing?
Write equilibrium reaction for HNO 2 and compute equilibrium concentrations of all species, compute pH , OH - , and the pOH
Give the cell notation based on the following reaction: Fe(s) + Hg2 ++ (aqueous) = Fe++ (aqueous) + 2Hg (l) the solution concentrations are 0.01 M
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