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1. (a) what factors could cause deviations from Beer's law at high concentrations of solute?
(b) why does Beer's law hold more accurately for the relationship between absorbance and concentration than that between % transmittance and concentration?
You are asked to prepare a buffer with a pH of 9.8. Calculate the volumes of .1 M solutions of NH4Cl and NH3 needed to produce 200mL of the buffer
Write a balanced chemical equation for the reaction: Na2CO3 and AgNO3? And Its ionic equation please
Why did the discrepancy between experiments and classical theory for blackbody radiation occur at high and not low frequencies
when 0.514 g of biphenyl c12h10 undergoes combustion in a bomb calorimeter the temperature rises from 25.8 degc to 29.4
Chlorine can be generated by heating together calcium hypochlorite and hydrochloric acid. Calcium chloride and water are also formed.
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
Choose the answer which presents the chemical formulas for two substances in order of decreasing melting point (highest melting point first) and gives a valid reason for this order.
The reaction vessel is charged initially with SO3(g) and NO(g), each at a partial pressure of 0.500 atm. In the space below, enter the equilibrium the partial pressure of SO2(g) in units of atm
What is the pH after 0.150mol of HCl is added to the buffer from Part A. Assume no volume change on the addition of the acid. Express the pH numerically to two decimal places.
The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
these three particles which would require radiation of the lowest wavelenth to excite its electron from the ground state to the second energy level?
Calculate the molarity and the molality of an NH solution made up of 28.0 g of NH in 70.0 g of water. The density of the solution is 0.982 g.
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