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A 0.5236 gram sample of an unknown monoprotic acid was titrated with 9.94×10^-2 M NaOH . The equivalence point of the titration occurs at 23.72 mL. Determine the molar mass of the unknown acid.
Given a free energy change for a reaction of -0.125 kcal/mol, what is the equilibrium constant at 18 degrees C (r=8.314 J/mol*K)
At 0°C, the volume coefficient of expansion of mercury is α = 18×10-5 K-1, and its coefficient of compressibility is β = 5.32×10-6 bar-1.
calculate the heat released when 3.89 l of cl2g with a density of 1.88 gl reacts with an excess of sodium metal at
Determine the molar mass of each of the following gases: a) 2.90 g of a gas that occupies 0.500 L at 0 degrees C and 1.00 atm (STP); b) 1.43 g of gas that occupies 2.00 L at 0 degrees C and 760 mmHg (STP); c) 0.726 g of a gas that occupies 855 mL ..
A cylindrical container has a radius of 2.1cm and a height of 0.62m. What is the volume of the container in dm3
Assume that the volume of the mixture equals the sum of the pure components volumes. Also assume that all alcohol and water are completely miscible. Calculate the densities (kg/m3) of solutions A and B and the mixture containing 25% ethyl alcohol ..
How many moles of hydrogen gas are needed to react with 15.1 g chlorine gas, to produce hydrogen chloride gas
If 110 {rm mg} of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 P.M.
the reaction of copper(I) sulfide with oxygen gas as follows: Cu2(s) + O2(g) ? 2Cu(s) + SO2(g) If 0.330 kg of copper(I) sulfide reacts with excess oxygen, what mass of copper metal may be produced
a photometer with a linear response to radiation gave a reading of 595 mV with a bank in the light path and 139 mV when the blank was replaced by an absorbing solution. Calculate
If the reaction of 2.50 g of aluminum with 2.50 g of oxygen produced 3.50 g of aluminum oxide, What is the % yield of the reaction?
How many moles of sodium chloride are present in the original solution. How many moles of ammonia are present originally
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