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The molar volume of a certain solid is 161.0 cm^3 at 1 atm and 350.75 K, its melting temperature. The molar volume of the liquid at this temperature and pressure is 163.3 cm^3/mol. At 100 atm the melting temp changes to 351.26 K. Calculate the enthalpy and entropy of fusion of the solid.
The density of the manometer fluid is 2.75 g/cm3. The height of the manometer fluid on side 1 is 324 mm. The height of the manometer fluid on side 2 is 326 mm
Experiments have shown that the average frequency of chirping by a snowy tree cricket depends on temperature as shown below
"Alpha" iron metal crystallizes with the body-centered cubic unit cell. If the unit cell is 287 pm on each side, what is the density of alpha iron?
what practical and creative decision must a scientist make? What important criteria must this choice fulfill?
A sodium thiosulfate, Na2S2O3, solution has a concentration of 0.150 M. An end point for this titration occurs when 32.89 mL of the sodium thiosulfate solution reacts with 24.80 mL of I2 solution.
A buffer solution contains 0.20M CH3CO2H and 0.34M NaCH3CO2. If 8.00 ml of 1.00 M HCl is added to 100.00 mL of this buffer solution. In what direction and by how much will the pH change?
calculate the heat released when 176g of water at 23.0 degrees celsius are converted to ice at -10.0 degrees celsius?
A careless student, Will Bobble, misread the label on a bottle of 10 M sodium hydroxide and used it (rather than 1 M NaOH) to dissolve his vanillin
A 30.36 gram sample of a hydrate of MnSO4 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 27.12 grams of the anhydrous compound remained. What is the formula of the hydrate?
An insulated tank is divided into two equal parts. Both halves contain the same ideal gas but one is at 300K and 2 bar while the other one is at 1 bar.
When we go down a group, electron affinity should become more positive (less energy released), since the electron is added at increasing distances from the nucleus.
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
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