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A generic salt, AB, has a molar mass of 243 g/mol and a solubility of 8.90 g/L at 25 C what is the Ksp of this salt.
A toxicologist studying mustard gas, S(CH2CH2Cl)2, a blistering agent, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0°C ).
A chemist wishing to do an experiment requiring 47Ca (half-life = 4.5 days) needs 5.0 mg of the nuclide. What mass of 47CaCO3 must be ordered if it takes 48 h for delivery from the supplier?
what is the final temperature of A metal sample weighing 34.526 g was heated to 98.0 degrees Celcius then quickly transferred into a styrofoam cup calorimeter containing 74.365 g of distilled water
If air contains 78% N2 by volume, what is the solubility of N2 in water of 25oC and 1 atm (Henry's constant kH for N2 in H2O at 25oC = 7 x 10-4 mol/L.atm)?
Assume that the partition coefficient, K, for partitioning of compound A between diethyl ether and water is 3; that is, A preferentially partitions into ether.
Calculate the total volume of gases when collected at 1.20 atm and 25 degrees Celsius from 261 grams of nitroglycerin. What are the partial pressures of the gases under these conditions.
The hot combustion product gas passes through a boiler in which heat transferred from the gas converts the boiler feedwater to steam. Calculate the concentration of CO (ppm) in the stack gas.
Calculate the number of grams of solute that would be needed to make each of the following solutions
Briefly describe how the atomic radii and ionization energies of group 1A(1) elements compare with those of group 8A(18). Also, explain why the values of these properties are so different between t
a) A saturated silver chloride solution contains 1.58 x 10-4 g silver chloride per 100 mL solution. What is the molarity of the solution?
A tank contains a mixture of 3.6 mol of N2, 2.7 mol of O2, and 1.8 mol of CO2 at 25°C and a total pressure of 10.0 atm. Calculate the partial pressure (in torr) of each gas in the mixture.
If 0.500 g of antacid was added to 50.00 mL of 0.100 M HCL and 5.65 mL of 0.100 M NaOH was required to titrate the un-neutralized HCL, calculate the actual neutralizing capacity of the antacid in mm
2 moles of salt are dissolved in 5 L of solution. What is the molarity of the solution?
The pKa's of benzoic acid and 4-nitroanilinium hydrochloride are 4.2 and 1.0, respectively. a.) Determine the Keq for the reaction of benzoic acid with 4-nitroaniline.
How many milliliters of concentrated hydrochloric acid solution (36.0% HCl by mass, density = 1.18 g/mol ) are required to produce 10.0 L of a solution that has a pH of 1.94?
How many grams of glucose (C6H12O6) must be dissolved in 563 gram of ethanol (C2H5OH) to prepare a 2.40 x 10-2 m solution?
The following reaction will be balanced in a acidic solution: MnO^(-)4 + H2C2O4 --> Mn^(2+) + CO2. What is one of the balanced half-reactions? oxidation or reduction half-reaction.
How many moles of HCl need to be added to 15.0 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl. Can you show the work too please?
A 0.30 M solution of sucrose (C12H22O11) at 37oC has approximately the same osmotic pressure as blood. What is the osmotic pressure of blood?
Considering a higher specific heat for water, what will the temperature change in the calorimeter be higher, lower, or unaffected by this technique error?
The freezing point of benzene is 5.5oC. What is the freezing point depression of a solution of 5.00 g naphthalene (C10H8) in 444 g benzene (Kf of benzene = 4.90oC/m)?
What is the maximum amount of each product that can be formed? How much of the other reagent is left over after the reaction is complete?
What is the concentration of solute particles (or ions) in mol/L present in 1 L of the following aqueous solutions? Assume all compounds listed are soluble.
If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of argon?