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The Planck distribution gives the energy in the wavelength range dA at the wavelength A. Calculate the energy density in the range 650 nm to 655 nm inside a cavity of volume 100 ern:' when its temperature is (a) 25°C, (b) 3000°C.
An aqueous solution is 48.3% by mass hydroiodic acid, HI. The density of this solution is 1.6 g/ml at 20 C. How many grams of pure HI are there in 190.0 ml of this solution at 20.0 C?
The volume of a 24.0g sample of methane gas is 22.8L at 40.0*C and 4.00atm. What will it's volume be at 68.0*C and 4.00atm.
The vapor pressure at 300 K is 856 torr. If 12.0 g of CCl3F is enclosed in a 1.0 L container, will any liquid be present? How much?
The combustion of 135mg of a hydrocarbon produces 440mg of CO2 and 135mg of of H2O. The molar mass of the hydrocarbon is 270 g/mol. Determine the molecular formula of this compound ?
Solutions of sodium carbonate and silver (I) nitrate react to form solid silver (I) carbonate and a solution of sodium nitrate.
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
What are the advantages and disadvantages of animal studies and epidemiological studies for establishing dose-response relationships?
How many grams of C are combined with 2.91 x 1023 atoms of H in the compound C5H10?
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
what will be the final temperature in degrees Celsius If the volume of a gas container at 32.0°C changes from 1550 mL to 755 mL,?
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
A new global sustainable business and industry incubator network is expanding into a Paris suburb. They want to make the newly acquired building and operations more environmentally friendly.
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