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A solution transmittance is 35% at 260 nm. What will the solution absorbance be if you dilute 25.0 ml?
The products of a specific reaction and the side products or impurities? Explain specifically what would be observed for this pair of compounds: 4-bromoacetanilide and 2-bromoacetanilide
According to quantum mechanics, the energy levels for an particle with mass m (such as an electron) confined in a 1-dimensional box of length a is given by
Put the following substances in correct order of increasing boiling point: Ar, F2, H3COH, Ir, SO2.
Which of the following is correct regarding an acid-base conjugate pair. a. The conjugate base will have one less proton and one less negative charge. b. The conjugate acid will have one more proton and one less positive charge.
The melting points of NaF, NaCl, NaBr and NaI are 988, 801, 755 and 651 degrees Celsius, respectively. Are these data consistent with ideas developed in Section 12-5
The flue gas analysis. The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas..
What effect will increasing the temperature have on the system? Fe3O4(s) + CO(g) ?? 3 FeO(s) + CO2(g) DH°= +35.9 kJ A) No effect will be observed. B) The reaction will shift to the right in the direction of products.
How many atoms of hydrogen are in 1 molecule of water, H2O
What is the frequency of the photons emitted by hydrogen atoms when they undergo transitions from n=5 to n=3.
What is the final concentration (in molarity) of the sodium acetate and the acetic acid. Prove that the student has correctly calculated the volume of sodium acetate that she needs.
A student during an extraction experiment lost track of whether a beaker contained an aqueous solution or an organic solution. How could the student determine which type of solutions was in the beaker by a simple test
Titanium tetrachloride, TiCl4, has a melting point of -23.2 C and has a Delta H fusion = 9.37 kJ / mol.
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