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A carbon dioxide fire extinguisher of 10 liters capacity contains 5 kg of carbon dioxide. What volume of gas could this extinguisher deliver at NTP?
The thermochemical equation for the formation of ammonia from elemental nitrogen and hydrogen is as follows: N2(g)+3H2(g)--> 2NH3 (g) ΔH= -92.2kj
A certain quantity of electricity is passed through a series of solutions containing AgNO3, CrCl3, ZnSO4, and CuSO4. a) If 1.00 g of Ag(s) was deposited in the first solution, how many grams of metal were deposited in each of the remaining solution..
what is the speed of a proton in a linear accelerator has a de Broglie wavelength of 159 rm pm
Cyclobutane decomposes to ethene in a first-order reaction. From measurements of the rate constant (k) at several absolute temperatures (T), the accompanying Arrhenius plot was obtained (ln k versus 1/T).
A buffer is prepared with 0.0400 moles of an acid (Ka=1.5x10^-4) and .025 moles of base and 400 mL water. Calculate the pH.
The standard enthalpy of combustion of solid urea (CO (NH2)2) is -632 kl mol-1 at 298 K and its standard molar entropy is 104.60 J K-1 mol-1, Calculate the standard Gibbs energy of formation of urea at 298 K.
Which denser: dry or humid air? assume each is at the same temperature of 150 c and pressure.
separation of acetone from water by using mibk.a stream containing 30 wt acetone and the balance water is to be
Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain a polyamide of approximately 15,000 molecular weight at 99.5% conversion.
Draw the structural formula for ethanol, 2-propanol and 2-methyl2-propanol. Write the reaction between sodium bicarbonate and benzoic acid.
calculate the average bond enthalpy for the carbon-carbon bonds in C6H6, comment on your answer in comparison to the estimated values for a single C-C bond (348 kJ/mol) and a double C=C bond (1842 kJ/mol)
The arrangement of the orbitals is the same in a multielectron atom and a single-electron atom. In the Li atom, the 3s, 3p, and 3d orbitals have different energies. The He atom has one electron each in 1s and 2s orbitals.
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