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Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3?
Determine why would the P have been higher or lower if the H 2 O had been at pH 5?
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
Hydrogen gas is contained in a one-liter vessel at "STP"(0 degrees Celsius and 1 Std. Atm.). Flourine gas is contained in a second one-liter vessel at the same conditions of temperature and pressure.
What is the Volume of 1.05 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL.
Explain the process of reduction when referring to metals within the earth. It is possible to have glass and asbestos with identical composition, and yet one is considered hazardous and the other is not.
A balloon contains 400cm3 of helium at 25degrees and 1atm pressure. If the balloon bursts when the volume exceeds 800cm3. What would be the maximum temperature it could withstand at constant pressure?
The activation energy for the reaction NO 2 (g)+CO 2 (g)?NO(g)+CO(g) is E a = 100kJ/mol and the change in enthalpy for the reaction is ΔH = -200kJ/mol. What is the activation energy for the reverse reaction?
Water (2290g ) is heated until it just begins to boil. If the water absorbs 4.99×10^5J of heat in the process, what was the initial temperature of the water.
If the methane contained in 5.00L of a saturated solution at 25 ^circ rm C was extracted and placed under STP conditions, what volume would it occupy.
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
Neon(Ne) is a noble gas with atomic number 10 this is a odorless, colorless, inert monatomic gas under standard conditions but explain some facts about Neaon.
What is the final temperature of the sand A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at twenty five degree Celsius?
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