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Problem: Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.
a. 0.0200 mol of sodium phosphate in 10.0 mL of solution
b. 0.300 mol of barium nitrate in 600.0 mL of solution
c. 1.00 g of potassium chloride in 0.500 L of solution
d. 132 g of ammonium sulfate in 1.50 L of solution.
The rate constant for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction. How long would it take for for the reaction to be 39.00% to complete
Methanol is toxic for humans if they ingest liquid methanol or inhale methanol vapor in significant quantities. When inhaled in concentration greater than 1000 ppm, death has been reported.
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
Most of the product is formed by anSN2 reaction. Give a mechanism for the reaction showing the transition state and explain why it leads to inversion of the configuration and give a perspective formula and a name of the main product of this reacti..
A solution is prepared by dissolving 138.50 g of sucrose, a nonelectrolyte, in 250.0 g of dionized water. The freezing point of the solution was determined experimentally to be -3.0 C.
What is the pH of 1) 0.001 M H2SO4 and 2) 0.001 M NaOH. What would be the resultant pH of a solution prepared by adding 25 ml of solution 1 to 20 ml of solution 2?
How much titanium (IV) chloride must react with excess oxygen to prepare 175 grams of the pigment if the reaction is only 85% efficient (% yield)
A metal-plating waste contains 20mg/L Cu2+, and it is desired to add Ca(OH)2 to precipitate all but 0.5mg/L of the copper. To what concentration in moles per liter must the hydroxide concentration be raised to accomplish this? Ans: 1.6*10^-7 mol/L
considering this homogeneous gas reaction ararr3r that follows second-order kinetics. for a feed rate of 6nbspm3hr of
For methanol, CH3OH, the molar enthalpy of fusion is 3.16 kJ/mol at the melting point T=175.2 K. Calculate the freezing point depression constant,k, of methanol
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transmission that begins in the state with n = 5.
certain salts of benzoic acid have been used as food additives for decades. the potassium salt of benzoic acid
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