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How many grams of CaH2 (Molar Mass = 42.1 g/mol)are needed to generate 14.0 L of H2 gas if the pressure of H2 is 757 torr at 20.0°C
After 273 m3 of ethylene oxide at 748 kPa and 525 K is cooled to 293 K, it is allowed to expand to 1.10 × 103 m3. What is the new pressure?
Many home barbeques are fueled with propane gas C3H8 What mass of carbon dioxide (in kg}) is produced upon the complete combustion of 18.9 { L} of propane (approximate contents of one 5-gallon tank)
A piston has an external pressure of 8.00 atm. How much work has been done if the cylinder goes from a volume of 0.170 liters to 0.530 liters.
How do you understand the following terms: "carbon loading" and "bonding density" for RP HPLC packing material? Which one is the most important for HPLC? Explain.
Home ice cream makers use ice to cool a concentrated NaCl solution below the normal freezing point of water. What molal concentration of salt is needed to lower the freezing point to -3.97 C?
Which of the following reactions best describes the acid-base properties of acetic acid (HC2H3O2) in aqueous solution
Determine the number of moles of CO2 that could be produced from the combustion of 0.00993 moles of Benzene
The wave function of an electron in a linear accelerator is given by ?(x)=(cosX)eikx+(sinX)eikx where X is a paramater. What for (linear combination) would the wavefunction
lightbulb is visible light and that the average wavelength og the light is 550 nm, how many photons are emitted by the lightbuld each second?
Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C).
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the fexpected freezing point change of the solution
Calculate the Gibbs Energy of reaction at 298 K for the following using 2 methods. First use enthalpies and entropies of formation and DrGo = DrH o - TDrS o to calculate DrG o.
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