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A 0.10 M aqueous solution of a weak acid HA has a pH of 5.00. What is the value of Ka for HA?
What is the molarity of an unknown gas that weighs 0.110 g in a 63.5mL container at 752 torr and 23 C
Determine Hvap for a compound that has a measured vapor pressure of 24.3 torr at 273 K and 135 torr at 325 K. Determine the Vapor Pressure (in mmHg) of a substance at 29*C whose normal boiling point is 76*C and has a Hvap of 38.7 kJ/mol
a .21 m3 drum contains 100l of a mixture of several degreasing solvents in water. the concentration of
What does it mean when it says show sample calculation for the unknown concentration interpolated from calibration curve?And how do you find the concentration of a chemical when all you know is tolerance and absorbance
What mass of iron is needed in order to supply the energy needed to warm 15.0mL of water (d= 1.00 g/cm3) from 23C to 37C
A sample of an unknown gas effuses in 10.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.35 min. What is the molar mass of the unknown gas
A perfect sphere of aluminum metal with a diameter of 4.56x10^-2 m reacts with 3.80L of 5.25M hydrochloric acid. the products are an aluminum chloride solution and hydrogen gas.
Many odors from solvents, perfumes, and paint strippers are derived from aldehydes or ketones
Instead of using two 100ml portions of ether. a single extraction had been carried out using one 200 mL portion of ether. What weight of Z would be contained in the ether solution under these conditions
What is different between call volatility and put volatility ratio? How market bias and market skewness affect the option strategy?
Compound X (C 8 H 12) produced 1, 5 - cyclooctadione while subjected to KMnO4. Depict the structure of Compound X
if a solution of epsom salts prepared by dissolving magnesium sulfate heptahydrate in water is added to a solution containing sodium lauryl sulfate, will a precipitate form
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