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An X-ray photon of wavelength 0.930 strikes a surface. The emitted electron has a kinetic energy of 940 . What is the binding energy of the electron in kJ/mol?
how many moles of ethylene glycol should be added to the radiator to lower the freezing point of the water from 0
which of the following species would be expected to have chemical properties most similar to those of the nitrogen
The vapor pressure of water at 45.0 degrees celcius is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation)
Explain why emission spectrophtometry has the ability to be much more sensitive than absorbance spectroscopy
Calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen? Express your answer in grams and assume that temperature and pressue will be in normal condition?
Acetylene, C2H2, gas is collected over water at 23°C. The total pressure is 745 torr. What is the pressure of the C2H2 gas. (The vapor pressure of water at 23°C is 21.07 torr.)
What is the complete and balanced chemical equation for. Lithium Sulfate+Lead(II) acetate ? Copper(II) nitrate+Sodium sulfide? Strontium nitrate+potassium iodide
IF the benzene ring has two halides i.e chlorine and bromine and we do dow process, which halide will it pick. The question looks something liike this
the likely intermediates in the mechanism and the expected isomeric products from the pathways of the mechnanism. Also please help to identify the major product attained.
What is the molaity of a solution prepared by dissolving 75.8 of ethylene glycol, HOCH2CH2OH, in 1.45 L of water? assume the density of water is 1.00 g/mL.
How much heat energy, is needed to convert 64.0 grams of ice at -18.0 degrees celcius to H2O at the temperature of 25.0 degrees celcius? Express your answers in kilojoules
an extended source is spherical in shape with a radius of 2.00 cm and emits 12.57 w from 399.5 to 400.5 nm. determine
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