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Two solutions namely, 500mL of .50 M HCl and 500 mL of .50 M NaOH at the same temperature of 22.1 *C are mixed in a constant-pressure calorimeter. The heat capacity of the calorimeter was 250 J / *C. Given that the specific heat of the solution is 4.184 J/g*C, the density of the solution is 1.00 g/mL, and that the heat of neutralization for the process H+(aq) + OH-(aq) ---> H2O(l) is -56.2kJ, what is the final temperature of the mixed solution?
How many grams of NaOH would you need to prepare 500mL of a 1M solution (assume 100% purity of the base)? M= (# of moles / L of solvent)
An ionic crystal unit cell is composed of two ions, X and Y. The empirical formula of this solid is XY2. If the X ions occupy the eight lattice points at the corners of the unit cell and on all six faces
Calculate the energy in joules required to ionize a hydrogen atom when its electron is initially in the n=2 energy level
The combustion reaction of propane, C3H8, in the presence of molecular oxygen, O2, is an equilibrium reaction that produces carbon dioxide and water. Express the equilibrium constant for this reaction.
explain why all the solutions iron iii nitrate and potassium thiocyanate used in this experiment were made in 0.1 m
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
450 mL of oxygen is bubbled through water at 10 degrees celsius and exerts 720.0 torr. What volume will the dry gas occupy at 730.0 torr and 10 degrees celcius?
What would you observe if Cu2+ and Bi3+ was treated with 6M NHO3 rather than concentrated NH3
How do you who that both ZnS and CuS will precipitate at pH8. 2) Show that only CuS will precipitate when (H3O+) = 0.3M
On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. If your body develops a charge of -20 microcoulombs,what is their collective mass
Calculate the pH at the equivalence point for the titration of 0.190 M methylamine (CH3NH2) with 0.190 M HCl. The Kb of methylamine is 5.0× 10-4.
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 40% of a 0.34 M sample to decompose at 45oC
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