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An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
A green leaf has a surface area of 3.00cm^2 . If solar radiation is 1040W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504nm for solar radiation.
The 1.000 L flask was filled with gas from the experiment at an atmospheric pressure of 30.57 inches of Hg and a temperature of 24 degrees C.
Give the steps to prepare the column required for the best purification of 0.40g of crude product using silica
what class of compounds is this characteristic and why and how can the relative scarcity of drugs that fluorescence be an advantage in some instances and a disadvantage in others?
Explain this different physical state behavior in terms of chemical structure and secondary intermolecular bonding.
Tell me if an induced current would exist, if you had a coil and a magnetic field that both were in motion at the same time.
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added). The Ka for HOCl is 3.0 x 10-8 M. 2.What is the pH after 2.40 mL of NaOH are added
a 37.4-l volume of methane gas is heated from 22 degrees c to 78 degrees c at constant pressure. what is the final
Calculate the pH of a strong base solution formed by mixing 16.2 mL of 8.93e-05 M LiOH with 23.6 mL of 9.10e-05 M Sr(OH)2.
Why must you avoid using your hands in handling the magnesium ribbon and the crucible and cover? 2.Why must objects be cooled to room temperature before taking their weights(masses)
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