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A student doing this experiment was puzzled by the fact that while each of the individual solutions being used is dangerous, the mixture made combining the two solutions is much less dangerous. Actually, the resulting mixture could be safely disposed of by pouring it into the drain and diluting with a large amount of running water. describe the harzards of each of the solutions. Explain why the mixture is not as hazardous as the original solutions from a waste disposal point of view.
You have a 1.0 mL sample of unknown concentration that requires 8.0 mL of titrant to change the color of the solution. How many mg of ascorbic acid are in your unknown sample
Consider the titration of 40.0 mL of 0.171-M of KX with 0.141-M HCl. The pKa of HX = 10.89. Give all pH values to 0.01 pH units. a) What is the pH of the original solution before addition of any acid
Calculate the number of moles and the mass of sodium carbonate present in the mixture. (Formula weight of sodium carbonate is 106g/mol)
Benzene (A) melts at 6 0C and diphenylmethanol (B) melts at 65 0C. The solids are mutually immiscible. There is a eutectic at 1 0C, the eutectic solution being 20 mol % in B, and an unstable compound, AB2,
Calculate the experimental value for Ksp for KHP and determine whether it is within 10% of the theoretical Ksp value (solubility = 8.0g/L). If not, give one reason why this error might have occurred.
Calculate the concentration of an aqueous solution of Ca(OH2)that has a pH of 12.57? Express your answer using two significant figures.
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 2-methyl-2-butanol as the MAJOR product
Draw the splitting pattern of the following substructures assuming that the vicinal hydrogen atoms have different chemical shifts.
A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 °C. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 °C.
Place the following molecules and ions in order of increasing bond angle about the central atom, and explain decision
Would the desired reaction occure if ethanol or t-butyl alcohol were used instead of isopropyl alcohol in the attempted photochemical dimerization of benzophenone?
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