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mass (g) of 4.04x10^20 molecules of dinitrogen pentoxide
A quantity of a certain perfect gas is compressed from an initial state of 0.085 m3 ,1 bar to a final state of 0.034 m3 , 3.9 bar. The specific heat at constant volume is 0.717 kJ/ kg K, and the specific heat at constant pressure is 1.025 kJ/kg K. The observed temperature rise is 146 K. Calculate the specific gas constant R to three decimal places and state the unit.
Why does tree leaves inside school premises increase soil PH
Sn(s) + Sn4+(aq) ⇌ Sn2+(aq)
Aniline, C6H5NH2, when reacted with picric acid gives a derivative with an absorptivity of
134 cm−1
g
−1 L at 359 nm. What would be the absorbance of a 1.00 × 10−4 M solution of
reacted aniline in a 1.00-cm cell
134 cm−1
g
−1 L at 359 nm. What would be the absorbance of a 1.00 × 10−4 M solution of
reacted aniline in a 1.00-cm cell?
When 21.3 g of CO2 are made, how much heat is released?
How to prepare acetylene from calcium carbide.
cube of osmium metal has 1.500 cm on a side and has a mass of 0.07631 Kg
at 25°C. Calculate the density of the cube.
