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What is the concentration of HCl in a 10,000 gallon tank if 1 gallon of 40% HCl is added? The formula weight of HCl is 36.45 g/mol. The density of a 40% solution of HCl is 1.198 g/cm3.
NaOH required for titration of 10 mL of monoprotic acid solution. What was the original concentration of acid? What was the original pH of acid solution if its pKa is 5.3?
A power company burns approximately 474 tons of coal per day to produce electricity. If the sulfur content of the coal is 1.30% by weight.
Calculate the detection limit (90% and 95% confidence interval) for a single measurement. Use the equation D.L = (ks)/m
An equimolar liquid mixture of benzene and toluene at 10C is fed continuously to a vessel in which mixture is heated to 50C.
0.1278- sample that is 97.50% As2O3 by mass had been used in the titration, how many milliliters of the 0.02140M KMnO4(aq) would have been required?
25.00 ml aliquots of thiis solution was titrated with monoprotic strong base NaOH (0.0800 M). The titre volume of NaOH was 40.00ml. Calculate the molecular weight of H2A.
The first ionization energy of bismuth is Ei1 = +703 . What is the longest possible wavelength of light that could ionize an atom of bismuth?
calcuate the number of moles of HCI and of NaOH present when mixing 50.0mL
A flask contains 0.500 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
In an experiment, 5.00 L of N2 is saturated with water vapor at 22°C and then compressed to half its volume at constant T. (a) What is the partial pressure of H2O in the compressed gas mixture?
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
The jewelry contains only gold and silver, which have densities of 19.3 and 10.5 , respectively. If the total volume of the jewelry is the sum of the volumes of the gold and silver that it contains, calculate the percentage of gold (by mass) in th..
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