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What is the pH of a 1.2M solution of sodium nitrite, NaNO2? the Ka for nitrous acid (HNO2) is 4.5x10^-4be as specific as possible and list all the steps, i am trying to learn how to do this and i still have no idea where to even start
What was the highest alcohol density reported and what was the lowest alcohol density reported by the two students?
You want to produce a mixture containing 19 wt% NaCl. Find the volume of the second feed solution.
Calculate the volume of 1M solution of HCl needed for 1 unit shift of the pH of thhe following solutions:
Which of the following are exothermic and endothermic?
A 1L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 850 torr. It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath. To what temperature (oC) will the oil bath need to be heated to first ..
Briefly comment on the effect of solution concentration on cell potential. Note that E knot is measured using 1M solutions,
How many grams of CaCl2 would be dissolved in 1.2 L of a 0.10 M solution of CaCl2?
The half equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
a bacterial culture isolated from sewage produced mL of methane,ch4 at 30C and 749 mmHg. What would the volume of methane at standard temperature and pressure 10 C 760 mmHg'
Compute the enthalpy change, , for this reaction per mole of (Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )
Calculate the mass of Nitrogen at room temperature dissolved at room temperature in an 80 L aquarium. Assume a total pressure of 1 atm and .78 mole fraction.
How many mmoles of mercury are in the sample? B) How many mg's of mercury are in the sample? C)What is the percent mercury (w/w) in the ointment?
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