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Compare and contrast Bergmann's rule and Allen's rule. Which is more relevant in the field of ecology and why?
a student prepared a solution of sodium chloride (NaCl) in distilled water by disolving 1.05g of NaCl in about 50mL of water. The mass of the final solution is 51.98g. determine the mass percent NaCl in the solution
The temperature of the solution drops by 22.4 degrees Celsius. If the specific heat of the solution is 4.18J/g degrees C, calculate the enthalpy of the solution of ammonium nitrate.
Need help reading IR chart to figure out what the compound is
Nitric oxide (NO) has recently been discovered to have many important biological functions in the immune system, in the transmission of nerve impulses, and in the treatment of heart disease. Nitric oxide is a highly reactive compound.
If the pressure exerted by ozone, O3, in the stratosphere is 3.0 times 10^- 3 atm and the temperature is 254 K, how many ozone molecules are in a liter?
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.34g and its initial temperature is 21.0?C.
Write out all equations (but you do not have to do the integration!) how you would calculate the absolute entropy of Cl2(g) at 298K. For full credit, you must include the limits of integration.
Gravimetric analysis
Problem- What is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K
how much heat in kj would be required to vaporize 1.00 l of diethyl ether c4h10o density is 0.714gml at 298 k if the
Use the collision theory to calculate the theoretical value of the second-order rate constant (in m3 mol-1 s-1) for the gas-phase reaction D2 + Br2 = 2 DBr at 450 K assuming that it is elementary bimolecular. The collision cross-section for this r..
a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.
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