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In designing an experiment on determining the value of absolute zero, should you try to control the heating/cooling rate of the apparatus to be slow or fast? Why?
Suppose 68 g of carbon monoxide is reacted with 8g of hydrogen gas to produce methanol (chemical formula CH3OH or CH4O) a) Calculate the theoretical yield of methanol. B) If 3.57 x 10^4 of methanol is recovered, what is the percent yield of meth..
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg? (Remember to include a "+" or "-" sign as appropriate.)
A buffer solution is prepared by mixing 50.0mL of 0.300 M NH3(aq) with 50.0mL of 0.300 M NH4Cl(aq). The pKb of NH3 is 4.74. NH3 + H20 ----> NH4+ + OH-
Calculate the partial pressure of water at 23.6 Celsius by interpolation from the vapor pressure table.
At 25°C the heat of fusion of aluminum is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of aluminum at 25°C?
What mass of glucose (180.0 g/m) must be added to 0.50 kg of water to increase the boiling point of the solution by 2.0 degrees C?
When we extrapolate concentration dependent values to zero solute concentration, what do these extrapolated values mean physically
If 37.5 mL of 0.274 M HCl solution is needed to neutralize an aqueous solution of calcium hydroxide, how manygrams of calcium hydroxide must be in the solution prior to the initiation of the titration experiment
when reducing a ketone to an alcohol in a lab why do we have toadd sodium borohydride little by little under ice water?
What amount of HCl gas must be added to 1.00 L of a buffer solution that contains [acetic acid] =2.0 M and [acetate]=1.0 M in order to produce a solution with pH =4.24
The molar heat fusion of water is 6.01 kj/mol. How much heat energy is required to melt one ice cube in a soft drink to form liquid water at zero degrees Celsius, if the cube has a mass of 18.9 grams
Benzoic acid dissociates in water: C6H5COOH + H2O ==== H+ and C6H5COO- The pKa of this reaction is 4.2. In a 0.53 M solution of benzoic acid, what percentage of the molecules are ionized
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