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A buffer solution is prepared by placing 5.86 grams of sodium nitrite and 32.6 mL of a 4.90 M nitrous acid solution into a 500.0 mL volumetric flask and diluting to the calibration mark. If 15.47 mL of a 3.03 M solution of potassium hydroxide is added to the buffer, what is the final pH? The Ka for nitrous acid = 4.6 X 10-4.pH=?
At constant volume the temperature of 2.0atm was 325K. The temperature is increased to 400K. What is the new pressure of the gas?
A 7.45-L container holds a mixture of two gases at 35 °C. The partial pressures of gas A and gas B, respectively, are 0.368 atm and 0.852 atm.
You have 50 mL of 0.010 fully protonated histidine. how many milimoles of base must be added to bring histidine solution to pH equivalent to the pI of histidine.
The reaction of nitrogen dioxide with carbon monoxide NO2 + CO NO + CO2 is second order in NO2 and zero order in CO. Complete the rate law for this reaction in the box below
Mixture of equal amounts of both enantiomers of given compounds does not rotate the plane of polarized light. (e) Racemic mixture has the same melting point as both corresponding enantiomer.
the volume of 4 cubic meters of gas is kept under constant pressure. its tempeture is increased from a minus 73 degrees celsius to 127 degrees celsius. What is the new volume of the gas?
The bond distance and dipole moment calculated for the highly reactive gas phase OH molecule are 0.98Ao and 1.78D, respectively. Compute the effective charges on the O and H atoms of the OH molecule (in units of the electronic charges).
what is the root-mean-square molecular speed of a gas molecule of this smelly gas molecule at 25C?
175 g of water was heated from 15 degrees to 88 degrees C. How many kilocalories were absorbed by the water?
The atmospheric pressure in the room when the measurement was made was 628 mmHg and the temperature was 36.0 degrees C. What is the density of the gas?
Use stereoformulas to show that (S)-benzoin reduces to meso-hydrobenzoin.
if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen
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