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If the temperature of the hydrochloric acid solution before mixing was 22.3oC as well as the temperature of the sodium hydroxide solution before mixing was 22.5oC, the temperature that must be reported for T1 is
Determine How many grams of NaOCl are in the solution if the percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%.?
If there are 0.640 g of NaCl left in a beaker that originally contained 75.0 mL of saltwater, what must have been the molar concentration of the original solution? The molar mass of NaCl is 58.44 g/mol.
Titanium (w=6.94x10^-19J) and silicon (w=7.77x10^-19J) surfaces are irradiated with UV radiation with a wavelength of 217nm. What is the wavelength of the electrons emitted by the titanium surface
One major variation of the Wittig reaction is the Wittig-Horner reaction. The Wittig-Horner reaction uses triethylphosphate P(OEt)3 instead of PPh3
sodium sulfate how many grams of solid ppt will be formed. How many grams of reactant in excess will remain. What is chemical equation
Calculate the percentage of chlorine in a sodium hypochlorite powder if 5.0 kg of powder gives off 2.3 kg of chlorine.
Draw a structure for a compound that meets the following description: A compound C3H5N with an IR absorption at 2215 cm-1 but none at 3300 cm-1
The vapor pressure of mercury is .0127 torr at 50 degrees celcius and .0888 torr at 80 degrees celcius. calculate the enthalpy of vaporization of mercury
Calculate the final temperature when a 25.6 gram sample of ice at 0oC is placed into a styrofoam cup containing 115 grams of water at 75.0 oC. Assume that there is no loss or gain of heat from the surroundings.
The 2 mL of 0.2 M solution of NaOH was added in 10 mL of 0.04 M solution of H3PO4. Calculate the concentration of (HPO4)^2- ions.
A solution contains 0.10 mol/L of a diprotic acid. The diprotic acid has the following pKa values: pK1 = 5.00 pK2 = 7.05 What is the isoioni point of this acid?
A gas is expanded in a cylinder from 2.00 L to 12.0 L against an external pressure of 1.80 atm. At the same time, it absorbs 2.56 x 103 J of heat from the surroundings. Calculate ?E of the gas in J. (1 L•atm = 101.3 J)
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