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A 10.0 mL sample of aqueous H2SO4 requires 24.32 mL of 0.143 M of NaOH to reach the endpoint. What is the molar concentration of H2SO4? The equation for the reaction is NaOH + H2SO4 --> NaCl + H2O
Choose the answer which presents the chemical formulas for two substances in order of decreasing melting point (highest melting point first) and gives a valid reason for this order.
Determine the molecular geometry, or shape, of ClO2 a. octahedral b. tetrahedral c. trigonal bipyramidal d. trigonal planar e. t-shaped f. bent
Calculate the concentration of chloride ions in a saturated lead(II) chloride (Ksp = 2.4 ? 10-4) solution.
The final volume of the balloon is 1500 mL. The atmospheric pressure is 1.00 atm. What was the original pressure of HI in the cylinder before the release of HI
How much energy (in kilojoules) is required to convert 245 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL ?
Calculate the amount of heat required to completely sublime 19.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
Spontaneous reactions always have Delta Sr > 0 E) A Thermodynamically stable compound is a compound with a negative standard free energy of formation
one hundred grams of water is saturated with nh4cl at 50degc. according to table g if the temperature is lowered to
question a certain first-order reaction has a rate constant of 2.75 x 10-2s-1 at 20oc. what is the value of k at 60oc
A 0.75-L bottle is cleaned, dried, and closed in a room where the air is 24°C and 50.% relative humidity (that is, the water vapor in the air is 0.5 of the equilibrium vapor
Show your calculations for the pH when 0.00 mL, 4.00 mL, 6.00 mL, 12.00 mL (equivalence point), and 16.00 mL of 0.10 M HCl have been aded to an initial
at 25 degrees celsius the first-order rate constant for a reaction is 2.0x103 s-1. the activation energy is 15.0 kjmol.
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