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If 75ml of a 0.75 M HCl are mixed with 300 ml of a 1.5 M HCl solution, what is the molarity of the resulting solution?
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
What is the pH of a solution resulting from the addition of 11.9 mL of 0.20 M HCl to 50.0 mL of 0.12 M NH3? Assume the volumes are additive. Kb of NH3 = 1.8 10-5.
Write the correct equation for the principal B/L acid/base equilibrium reaction in 0.1 M (H4N)2So4.
If the percent yield of 3NO2 + H2O yields 2HNO3 + NO is 75.0 percent and 45.0 grams of NO2 are consumed in the reaction, how many grams of HNO3 are produced?
The specific heat of the brick is 0.85 J/g-K. How many bricks must be incorporated into the interior of the house to provide the same total heat capacity as 1.1 103 gal of water
the water-cyclohexanone-diethyl ether mixture. Explain how the addition of sodium chloride aids in isolation of the cyclohexanone product.
What is the approximate pH of a solution of the salt NH4(O2CCH3) (ammonium acetate)? No calculations -- only reasoning needed. pKa/pKb values in your notes
Write the complete molecular formula and then completes ionic equations. Then write the net ionic equation.
Determine the pH of a 50.00 ml solution made up of 0.9602g of disodium salt of maleic acid (Na2A) and 0.522 g of the monosodium salt (NaHa) following the addition of
calculate the temperature of the solution after the CaCl2 dissolves. (Assume no heat is lost to the container or the surroundings and the specific heat of the solution is the same as that of water.)
Calculate the energy, in joules, required to excite a hydrogen atom by causing an electric transition from the n=1 to the n=4 principal enegry level
A 0.100 M solution of a weak acid, HX, has a pH of 2.110. What is the value of Ka for HX?
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