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1. A student measures the conductivity of an H2CO3 solution and determines it to be a weak electrolyte. The student incorrectly lists the species in solution as H+, CO3-2. Give the correct list of species in the solution.
2. A student measures the conductivity of a C4H10O (diethyl ether) solution and determines it to be a nonelectrolyte. The student incorrectly lists the species in solution as H+, C+4, O-2. Give the correct list of species in the solution.
A 515- sample of unknown solution reacts completely with to form 20.1 . What was the concentration of the solution?
An infant ibuprofen suspension contains 100 mg/5.0 mL suspension. The recommended dose is 10mg/kg of body weight.
A 35.8-g sample of cadmium metal was melted by an electric heater providing 4.66 J/s of heat. If it took 6.92 min from the time the metal began to melt until it was completely melted, what is the heat of fusion per mole of cadmium?
Calculate the molarity of a solution of glycerol made by dissolving 53.000 mL glycerol at 15 'C in enough water to make 270.00 mL of solution.
Draw the major, neutral organic product for each substitution reaction below
exactly 16.9mL of EDTA are required to reach the EBT endpoint. calculate the total hardness in ppm CaCO3.
A particular diatomic molecule which contains H exhibits a 16.95 cm^-1 spacing between its rotational lines and bond length of 141.5 picometers. Determine the mass (in amu) of the unknown atom in the molecule.
What volume of 0.160 M of Li2S solution is required to completely react with 125 mL of 0.160 M of Co(NO3)2
A rock sample contains traces of 238U, 235U, 232Th, 208Pb, 207Pb, and 206Pb. Careful analysis shows that the ratio of the amount of 238U to 206Pb is 1.164.
Determine the root-mean-square speed of CO2 molecules that have an average kinetic energy of 4.21*10^(-21) J per molecule.
An element has two isotopes with masses of 62.9396 u and 64.9278 u,and 30.83% of the atoms are the heavier isotope. Calculate the atomic mass of this element and give its name and symbol.
Alkenes contain double bonds while alkynes contain triple bonds, Naming compounds containing double as well as triple bonds
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