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What volume, in mL, of 0.1085 M H2SO4 would react exactly with 40.0 mL of a 0.995 M solution of KOH by the reaction: H2SO4 (aq) + 2 KOH (aq) -------> K2SO4 (aq) + 2H2O (l)
what is the approximate frequency of a photon having an energy 4.85 x 10-19 j? h 6.63 x 10-34
The heat capacity of a system is defined as the ratio of the infinitesimal amount of heat absorbed to the corresponding increase in the temperature when some process is carried out. Show that the heat capacity at constant volume is C_V is equal to
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL. Answer each of the following questions by selecting the correct choice.
Predict the probability P9v) that a molecule will have a given total velocity of more specifically P(v)dv is the probability that a molecule will have a velocity btwn v and v+dv.
What is the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2? The Ka for acetic acid is 1.8 x 10-5.
David J hooper weighs out 13.1 grams of salicylic acid in a 250 mL flask and adds 7.5 mL of acetic anhyride (density=1.080 g/mL) Determine the max (theoretical number of grams) of acetlysalicylic acid he can prepare
under water where the temperature is 17c and the pressure is 394 kpa a diver inhales 2.1 l of air from his scuba
How much work is done in kilojoules when the volume of a cylinder goes from 2L to 3L and stays at 2.5 atm? Are the surroundings doing work on the system or system doing work
A 7.45-L container holds a mixture of two gases at 35 °C. The partial pressures of gas A and gas B, respectively, are 0.368 atm and 0.852 atm.
Calculate pH of the solution after addition of 0.20 mols of KOH. The Ka for HNO2 is 4.3*10^-4
If the primary alcohol ethanol is subjected to sulfuric acid, an SN2 substitution would occur instead and diethyl ether would be formed.
consider a molecule with spacing between two energy levels of 0.250 kj mol-1. calculate the wavelength and wavenumber
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