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The accompanying diagram shows how entropy varies with temperature for a substance that is a gas at the highest temperature shown.
(a) What processes correspond to the entropy increases along the vertical lines labeled 1 and 2?
(b) Why is the entropy change for 2 larger than that for 1?
For H3PO4, a tripotic acid, Ka1 = 7.1 × 10-3, Ka2 = 6.3 × 10-8, and Ka3 = 4.5 × 10-13. What is the pH of a solution which contains 0.200 mol of K2HPO4 and 0.300 mol of Na3PO4 per liter of solution?
The atomic number of an element X is 14,and its relative atomic mass is 28. How many neutrons does an atom of X contain? What is the electronic distribution in an atom of X? will X react in an electro-valent or covalent manner? Give reasons for yo..
The mass of the sample after heating is 2.9167 g. The metal was then isolated and was found to have a mass of 1.0723 g. How many moles of water are in the hydrated salt. Write the formula of the hydrated salt. The molar masses of Fe, SO42-, and H2..
A certain reaction has activation energy of 44.77kJ/mol. Explain at what Kelvin temperature will the reaction proceed 6.50 times faster than it did at 313 K
Given that benzaldehyde is a meta- director, draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when benzaldehyde reacts
An ideal gas in a sealed container has an initial volume of 2.40 L. At constant pressure, it is cooled to 10.00 °C where its final volume is 1.80 L. What was the initial temperature
If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?
If the initial concentration of cyclopropane is 0.150 M, what will the concentration of cyclopropane be after 22.0 hours? b) What is the half-life for the conversion process?
a 49g piece of ice at 0 degrees c is added to a sample of water at 9 degrees c. all of the ice melts and the
Suppose that each sphere represents 6.7×1021 molecules and that the volume of the container is 1.0 L. What is the rate constant for the reaction in the usual units?
question what is the initial temperature degc of a system that has thepressure decreased by 10 times while the volume
Utilize symmetry considerations determine all coefficients in the hybrid orbital equations for linear sp hybridization
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