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Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride. (For CrF3, Ksp = 6.6 x 10-11.)
Why are the injection port and detector always heated to higher temperatures than the column in a gas chromatograph
a weather balloon at earths surface has a volume of 4 l at 285 k and 791 mmhg. if the balloon is released and the
You have isolated compound X from panda pancreas. You started a whole pancreas, and finished up with 2 ml of a pure solution of X. You take 50 µl of this solution, and add it to 1.950 µl of buffer. The absorbance of this dilute solution at 340nm w..
The Nernst equation applies to both cell reactions and half-reactions. For the conditions specified, calculate the potential for the following half-reactions at 25 C 2Cr3+
Add electron dots and charges as necessary to show the reaction of potassium and bromine to form an ionic compound.
An optically active compound A, C6H10O2, when dissolved in NaOH solution, consumed one equivalent of base. On acidification, compound A was slowly regenerated. Treatment of A with LiAlH4 in ether followed by protonolysis gave an optically inactive..
Magnesium metal is used as a sacrificial anode to reduce the corrosion of underground storage tanks (made of iron, more accurately steel). As a result the sacrifical metal corrodes instead of iron. Explain
Consider following cell. SCE stands for the saturated calomel reference electrode, which has a fixed potential of 0.244 volt. Pt|VOSO4 (0.0184 M), V2(SO4)3 (0.212 M), HClO4 (0.0100 M) || SCE Calculate the cell potential.
the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.
The mercury level in the open end of the manometer is 22 mm below that in the side connected to the argon. What is the pressure of argon, in mmHg
how to find the maximum percentage yield of the ketene when the phase-gas decomposition of acetic acid at 1189k
Use the Variational Principle a to estimate the ground state energy of a harmonic oscillator with un-normalized trial wavefunction φ(x)=1/(1+βx2)2 where β is a paramete
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