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From a thermo standpt, at NLC what principal products are expected from a rxn mix consisting of ~1 mol Al(NO3)3(s) w. ~1 mol Na2CO3(s) in ~2 L of DIW? Defend/explain your response.
Describe two independent methods for determining the atomic mass of an element. Explain how these method are truly independent.
As early as 1938, the use of NaOH was suggested as a means of removing CO2 from the cabin of a spacecraft according to the following (unbalanced) reaction: NaOH + CO2 → Na2CO3 + H2O.
If the aqueous solution in the above problem with ammonia was also allowed to equilibrate with an atmosphere containing 10 3.5 atm carbon dioxide
Draw the base pairing between 8-oxoguanine and cytosine and 8-oxoguanine and adenine. Use single bonds to represent hydrogen bonds.
The gas is collected over water . If 156 mL of gas is collected at 19oC and 769 mmHg total pressure, what is the mass of hydrogen collected?
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
A 1.800 g sample of solid phenol (C6H5OH) was burned in excess oxygen in a bomb calorimter whos heat capacity is 11.66 kj/°C. The temprature increased from 21.36°C to 26.36°C.
Calculate the volume change upon mixing sufficient ethanol with 8.85mol of water to give this concentration. The densities of water
use a solid line to represent the correct calibration line and a dotted line for the line with the systematic error.) Also discuss the advantages and disadvantages of spectral methods of analysis.
You are given some reactions as a. Cl2(aq) + 2NaI(aq)= I2(aq) + 2 NaCl(aq), b. Br2(l) + 2K(S)=2KBr(s), c. Pbs( s) + 4H2O2(aq)= PbSO4(s) + 4H2O(l) you just need to Indicate which element is reduced and which is oxidized in the given equations?
Under a given set of conditions, benzene C6H6 (b.p. 80°C) has a retention time of 60 seconds using a GC column. Under these same conditions, would you expect the retention time of toluene C7H8
Calculate the current strength needed to vaporize 12 g of compound X (Mw = 180.16 g/mol and a molar enthalpy of vaporization of 106.4 kJ/mol) in 30 seconds using a 16 volt battery.
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