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An X-ray has a wavelength 1.44A. Calculate the energy in J of one photon of this radiation.
Complete combustion of a 0.360g sample of glucose produced 0.528g carbon dioxide and 0.216g of water. Find the empirical formula for glucose.
A sample of 30.0 ml of krypton gas, Kr, is at 756 mm Hg and 25.0 degree celsius. What is the new volume if the pressure is decreased to 325 mm Hg and the temperature is decreased to -12.5 degree celsius?
Determine the phase composition and temperature when equilibrium is reestablished?
the enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
determine how many pounds a citizen would have to weigh in order to have ice melt beneath his/her ice skates. Do a bit of research and find out the area if cibtact betweeb a typical ice skating blade and the ice surface
According to the following reaction, how many grams of hydrogen gas are necessary to form 0.475 moles nitrogen gas? nitrogen monoxide (g) + hydrogen (g) nitrogen (g) + water (l) 2) According to the following reaction, how many moles of carbon diox..
How much work would have been done if the gas were ideal? Account for the differences the two values.
A concentrated solution of compound A in the same solvent was diluted from an initial volume of 2.00 ml to a final volume of 25.00 mL and then had an absorbance of 0.733. What is the concentration of A in the concentrated solution
What are the principal natural sources of hydrogen? What are the principal methods for the commercial preparation of hydrogen?
How do we know the oxidation of camphor leads to a different product if they look/smell the same in the end as it did in the beginning?
Eventually, the water becomes saturated with respect to NaCl. Write a balanced chemical reaction illustrating the precipitation of NaCl and explain saturation
equilibrium contains 2.4 moles of Cl2, 1.0 mole of NOCl, and 4.5 x 10-3 moles of NO. Calculate K at this temperature for the following reaction
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