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Which of the packaging plastics contain oxygen double bonded to a carbon atom, and what characteristic infrared absorption will this plastic display?
Suppose at some temperature, Kc= 6.20 X 10^8 for the reaction 2NO(g) + 2H2(g) N2 (g) + 2H2O(g). 5.00 M NO(g) and 5.00 M H2 (g) are placed in a reaction flask. Calculate the equilibrium concentration of H2 (g).
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz MHz, where 1MHz=10^6 Hz. Calculate the broadcast wavelength of the radio station 96.50 FM.
How much heat energy is required to raise the temperature of 0.367 kg of copper from 23.0 degrees C to 60.0 degrees C? The specific heat of copper is 0.0920 cal/(g*C)
gave straight line relationship. It took 52.3 seconds for concentration of A to decrease from 0.667 M to 0.117 M. What is the half life of the reaciton when [A]o = 0.667 M?
What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction with 100 mL of hexanes? What weight of A would be removed by four successive extraction with 25-mL portions of hexanes?
Calculate the percent yield of this organic reaction- C7H6O2------->C12H16O2. Molecular weight of C7H6O2 is 122.12 amount used 100g, Molecular weight of C12H16O2 192.25 amount recovered 125.9 g
copper is elctroplated from cuso4 solution. a constant current of4.00 amp is applied by an external power supply. how
Using standard enthalpies of formation, calculate the change in enthalpy for the following reaction: 2C6H6 + 15O2 = 12CO2 + 6H2O. How many grams of C6H6 must be combusted in the above reaction to produce 2570 kJ of heat energy
Researchers analyzing an unknown hydrocarbon with chemical formula CxHy found that 225 grams of O2(g) were required for complete combustion of 1.0 mol CxHy, to form CO2(g) and H2O(g) only.
explain why all the solutions iron iii nitrate and potassium thiocyanate used in this experiment were made in 0.1 m
a solution of ammonia and water contains 3.30times1025 water molecules and 7.00times1024 ammonia molecules. how many
Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB. A bag contains a mixture of copper and lead BBs
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