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You are in a mountain range with atmospheric air pressure of 520 mmHg, and you wish to boil some eggs. What is the approximate boiling point of the water at this air pressure?
initially the temperature is 97.3 degrees celsius. At this temperature the partial pressure of water is 745 mm Hg (torr). What is the % by mass of aniline in the distillate?
calculate the crystal field splitting energy in Kj/mol for blue soloution containing the copper complex [Cu(NH3)6]^2. the solution exhibits
The melting point of a pure compound is known to be 110-111°. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity.
In tables of thermodynamic data provided in chemistry books, one finds ?H°f, ?G°f, and S° listed. Briefly, explain why the entropy data are supplied as S°, while the enthalpy and free energy data are in the form of ?H°f and ?G°f, respectively.
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
Your fuels group is experimenting with glassification of spent fuel. They want to know how much of the following constituents they need to buy to produce 1000 kgs of a glass containing
When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type. Na2S2O3 + I2 ? NaI + Na2S4O6
Indicate the ionic species that predominates at pH 4, 8, and 11 for (a) ammonia and (b) phosphoric acid.
How many grams of dry NH4Cl need to be added to 1.80L of a 0.400M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.90? Kb for ammonia is 1.8*10^-5.
Write and balance the eguation for a neutralization of sulfuric acid of unknown concentration by sodium hydroxide. Calculate the molarity of an unknown sulfuric acid solution of a 25.0 mL sample of the acid solution consumes 27.2 of 0.138 M NaOH s..
Glacial acetic acid is mixed with liquid methanol (nonaqueous). What type of organic reaction can this be characterized as?
A compound is 40.0% C , 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this compound. The molecular formula mass of this compound is 240 amu. What are the subscripts in the actual molecular formula?
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