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A 12.0 mL sample of a compound has a density of 1.44 g/mL. What is the weight of the sample in g?
The four major attractive forces between particles are ionic bonds, dipole-dipole attractions, hydrogen bonds, and dispersion forces. Consider the compounds below
A certain carbon-hydrogen compound contains 84.1% C by mass and the remainder is hydrogen. What is the empirical formula of the compound
Define how NMR spectroscopy could be utilized to characterize the trans geometry of the double bond of the alkene formed in the reaction
Calculate the energy (joules) required to achieve the transition from the ground state to the first excited state for this system.
Explain which of the following species has the shortest, strongest covalent bond: CN^- , CO2 , C2^2- , CO^2- , CO
A saturated solution of calcium hydroxide contains .38 grams of calcium hydroxide in each 250 mL of solution. What is the pH of the saturated calcium hydroxide?
In a titration of 15.00 ml of 0.20 M HX with a NaOH solution, the equivalence point volume of base is 25.00ml. If the pH is 4.74 at 12.50 ml of base, what is pH at 10.00 ml of added base?
Compute the volume of C2H2 that is collected over water at 23 C by reaction of 1.52g of CaC2 if the total pressure of the gas is 750torr. The vapor pressure of water is 21.07torr.
Assume that 50.0 milligrams of a radioisotope were produced. Define what mass of this material would stay after 45 minutes if this radioisotope has a half-life of 15 minutes.
A metal sample weighing 34.526 g was heated to 98.0 C then quickly transferred into Styrofoam cup calorimeter containing 74.365 g of distilled water at a temperature of 27 C. The temperature of the water in the cup increased and stabilized at 29 C..
20 ml Calcium Hydroxide solution was titrated with 9.8 ml 0.0105 M HCl in according to reaction: Ca(OH)2 + 2HCl ? CaCl2 + 2H2O What is the Molarity of Ca(OH)2 in the solution
Calculate the molarity of a solution of glycerol made by dissolving 66.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
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