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If 2.01 g of He gas occupies a volume of 12.0 L at 25 degrees C, what volume will 6.52 g of He gas occupy under the same pressure?
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency \rm 1.0\times10^{15}Hz
what are the special characters of hollow tube, herring bone and bambo like carbon nano tubes in chemistry?
Calcium carbonate is relatively insoluble and the dissolution reaction is endothermic: CaCO3 ---> Ca2+ CO3^-2
explain why DNA double stands separate by heating without degradation of the stands to their component molecules.
What is the % barium in an alloy if it takes 22.0 mL of 0.875M sulfuric acid solution to react with all the barium in a 7.59 g sample of the alloy
Ethyl alcohol has been added to 160 mL of water in a container that has a mass of 130 g when empty. The resulting container and liquid mixture has a mass of 450 g.
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
2I2 + N2H4 → 4HI + N2 a. How many grams of I2 are needed to react with 36.7 g of N2H4?
The rare earth metal terbium is produced from terbium (III) flouride and calcium metal by a single replacement reaction. Given 27.5 g of terbium (III) flouride and 6.96 g of calcium, what is the theoretical yield (in grams) of terbium
benzoic acid c6h5co2hhbz solutions are sometimes used in experiments to determine the molarity of a basic solution of
Carry synthesis of the following compounds using 4-octyne as the only source of carbon. Provide a full retrosynthetic analysis as well as the complete forward synthesis including all reagents necessary to carry out each step
a metal object with a mass of 19g is heated to 96 degrees C, then transferred to a calorimeter containing 75 g of water at 18 degrees C. The water and metal object reach a final temperature of 22 degree C.
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