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what is the purpose of the trail titration? describe the endpoint of the a titration? how will you know when you have reached it? explain why the walls of the flask are washed with distilled water during the titration? how will this affect the outcome of the titration?
What is the second step in the scientific method? 1-to analyze the data, and create a theory to confirm the experimental observations 2- to analyze the data, and propose a tentative hypothesis to explain the experimental observations.
The wedge is connected to a pendulum and swings through an arc and hits the sample at the bottom of the arc. The sample breaks and the wedge continues its swing to a height of 0.5 m. The energy required to break the sample is closest to
The rate equation for the decomposition of n2o5 (giving NO2 and O2) is rate=k[N2O5]. For the reaction at a particular temperature, the value of k is 5.0x10^-4 s^-1.
Calculating concentration in equilibrium, At pH 6.00 and pE 2.60, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3?
A process involving a perfect gas is carried out in which the temperature changes at constant volume. First, the process is carried out for a fixed value of ?T and the mass of the gas is doubled. Then, the process is repeated with the same initial..
At 25 °C, the equilibrium partial pressures for the following reaction were found to be PA = 1.40 atm, PB = 8.90 atm, PC = 5.10 atm, and PD = 2.50 atm.
Population ratio between two energy levels is 0.98. The space between the energy level is 0.625 meV. What is the system's temperature?
according to the following pKa values listed for a set of acids, which would lead to the strongest conjugate base?
A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?
In a haloform reaction with chloride, what reaction step is pertinent to the synthesis of molecular chloride?
A student found that a maximum of 0.800g silver acetate is able to dissolve in 100.0ml of water. What is the molar solubility and Ksp for the salt?
unused lead nitrate to the container marked"sodium nitrate". What could the student do to get all the led ions out from the sodium nitrate?
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