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Concentrated hydrochloric acid solution contains 37.2 m/m% HCl. What mass of HCl is contained in 35.5g of concentrated HCl
What is the molarity of the nitrate ions when 0.35 mol of barium nitrate, Ba(NO3)2, is dissolved in enough water to make 3.0 L of solution?
What is the heat change of H 2 O If the final temperature of the mixture = 25 degree celsius?
What are 3 most significant structural differences between HPLC equipment and Ion Chromatography instruments
The initial pH of chloroacetic acid is 1.90, (which I found from using the quadratic equation to find x in a RICE table because I was given the initial concentration of 0.124M and told to find the pH of a 10.0 mL solution.)
write a detailed mechanism for the reaction of salicylic acid with acetic anhydride showing clearly the function of the catalyst, sulfuric acid.
One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 74°C. Weights are removed suddenly from the piston to give the following sequence of three pressures.
What mass of this substance must evaporate in order to freeze 250 g of water initially at 15 C? (The heat of fusion of water is 334 {J/g}; the specific heat of water is 4.18 {J/g c.K}.)
The formation constant Kf for the complex ion Zn(OH)42- is 2.8 1015. What is the concentration of zinc ion, Zn2+, in a solution that is initially 0.50 M in Zn(OH)42-
75.0 mL of a 1.80 M solution is diluted to a volume of 258 mL. A 129-mL portion of that solution is diluted using 187 mL of water.
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
If 290. mL of 0.130 M KOH are mixed with 200. mL of 0.430 M KOH, what is the molarity of the final solution?
Assume that aspartame is a molecular solid and does not ionize when it dissolves in water. Kf values are given here.
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