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Question - The height of the mercury in the right arm open to atmospheric pressure (760 mmHg) is 100 mm and the height in the left arm is 120 mm. What is the pressure in the bulb?
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Cyclopropane, C3H6, is converted to its isomer propylene, CH2=CHCH3, when heated. The rate law is first order in cyclopropane, and the rate constant is 4.0 10-4 /s at 400°C. If the initial concentration of cyclopropane is 0.0254 mol/L, what is the..
When a piece of metal is irradiated with UV radiation (wavelength = 162 nm), electrons are ejected with a kinetic energy of 5.96*10^-19 J. What is the work function of the metal? (in joules)
Which of the following is not an intermolecular force? A. London dispersion forces B. hydrogen bonding C. dipole-dipole forces D. ionic bonding
a compound consists of 60.0 carbon 26.7 oxygen and 13.3hydrogen. its molecular weight is 60. what are the possible
a sample of hydrogen occupies a volume of 1.20 liters at a pressure of 425 kilapascals. if the temperature of the gas
What is the volume of a sample of chlorine gas with a density of 0.0032 g/cm3 and a mass of 1.45 g?
Freon-12 is used as a refrigerant in central home air conditioners. The rate of effusion of Freon-12 to Freon-11 (molar mass=137.4g/mol) is 1.07:1. The formula of Freon-12 is one of following: CF4 , CF3Cl , CF2Cl2 , CFCl3 , OR CCl4 . Which formula..
How can you tell when looking at organic compounds what is saturated? Here are some examples?
Calculate the solubility product constant for Pb(IO3)2 (4.3 x 10^-5 M), given that the molar concentration of saturated solution is as indicated in parenthesis.
For [Co(en)(NH3)2Cl2]ClO4 identify the coordination number of cobalt, the coordination geometry for cobalt, the oxidation number of cobalt, the number of unpaired electrons
The amount of energy needed to heat 2.00 g of carbon from 50.0°C to 80.0°C is 42.6 J. The specific heat capacity of this sample of carbon is ?
The enthalpy of combustion of acetylene C2H2 is C2H2(g) + 5/2O2(g) ->2CO2(g) + H2O(l) H°rxn= -1299 kJ Calculate the enthalpy of formation of acetylene, given the following enthalpies of formation H°f[CO2(g)] = -393.5 kJ/mol ,H°f[H2O(l)] = -285.8 k..
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