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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
a. 25.00 ml of 0.1200 M HCl
b. 50.00 ml of 0.1200 M HCl
Benzene (C6H6) is converted to cyclohexane (C6H12) by direct addition of hydrogen gas H2. The plant produces 100 Ib-moles/hr of cyclohexane. 90% of benzene fed to the process reacts to form cyclohexane.
what is the vapor pressure(in mm Hg)of a solution made by dissolving 18.3g of NaCl in 500.0g of H2O at 70 degree celcius. The vapor pressure of pure water at 70 degree celcius is 233.7 mm Hg.
Explain why a 1m solution of the compound FeCl2 in water has a lower freezing temperature than a 1m solution of KCl in water and what is the empirical formula of a compound
calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the
When o.514 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.8 to 29.4 degree Celcius. Find delta energy reaction for the combustion of biphenyl in KJ/mol biphenyl.
write equations for the chemical reactions that occurred between the aqueous solutions of the oxides of sulfur and calcium and between the aqueous solutions
A gaseous reaction occurs at a constant pressure of 50atm and releases 61.5kJ of heat. Before the reaction, the volume of the system was 7.00L. After the reaction, the volume of the system was 2.60L.
how many grams of water can be cooled from 45 c to 23 c by the evaporation of 63 of water? the heat of vaporization of
a solution is prepared by mixing 50.0 ml of 0.24 m pbno32 with 50.0 ml of 1.6 m kcl. calculate the concentrations of
how does the hammonds postulate explain?a. the greater selectivity for bromination vs. chlorination of an alkane?b. the
How many moles of sodium chloride (NaCl molar mass 58.44 g/mol) are contained in a 1 lb box of table salt
a 4.0 g sample of iron was heated from 0 degrees celsius to 20 degrees celsius. it absorbed 35.2 j of heat. what is the specific heat of this piece of iron?
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