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Calculate the standard enthalpy change for the reaction
2A+B?2C+2D
Use the following data:
If the volume of an unknown liquid is measured and found to be 6.510 L, what is the volume of the unknown liquid in milliliters?
Some of the cyclohexane solvent vaporized during the temperature versus time measurements. Will this loss of cyclohexane result in the freezing point of the solution being recorded as too high
calculate the increase in entropy when 3.50 mol of monatomic perfect gas with cp 52 r is heatednbsp from 250 k to 700
what is the strongest base that may exist in water? what happens to stronger bases? use methoxide ch3o1- as an
Given the following equation,determine the rate of a reaction with respect to (NICk).if the rate of Cl2 loss is 4.84 *10 raised to -2 m/s, what is the rate of formation of (NOCl)
The decomposition of sulfuryl chloride is a first orded. The rate constant for the decomposition at 660 K is 4.5 X10-2 s-1. A. If we start with an initial SO2Cl2 pressure of 330 torr, Explain what is the pressure of this substance after 73 s
Explain what is the pH of a 0.05 M solution of TRIS acid (pka = 8.3)
Consider a large number of hydrogen atoms ,with electron all initially in the n=4 states.
For H3PO3, Ka1 = 1.0x10- 2and Ka2 = 2.6x10-7. Calculate a value for the [H2PO3] in a 0.500 molar solution of H3PO3
The zinc content of a 1.45 g ore sample was determined by dissolving the ore in HCl, which reacts with the zinc, and then neutralizing excess HCl with NaOH
Problem- If an ideal gas has a pressure of 1.51atm, a temp of 495K and has a volume of 68.15L, how many moles of gas are in the sample
When 25.0 g of ethanol vapor condenses, 23.6 kJ of heat is released. How much heat is required in kJ to vaporize 262 g of ethanol?
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