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It has been proposed to mix a 1500 L bath containing 5% by volume of H2SO4 with a 1500 L bath containing 5% by weight of NaOH. The Specific gravity of the acid added is 1.841 as well as its purity is 96%. The base added is 100% pure. Approximate the final pH and the final TDS in mg/L of the mixture of the two baths
How many grams of pyridine are there in 100 mL of an aqueous solution that has a pH of 9.00? The Kb for pyridine is 1.9x10^-9
If 8.8 mg of iodine-123 is used in an experiment, how many milligrams of iodine-123 should remain after 50 hours. Assume that iodine-123 has a half-life of 10 hours.
Find the Ksp range for PbI2(s) (hint: you will need to apply the dilution formula to the concentration of Pb(NO3)2 and KI. Think about what you will need to find the Ksp and look for those pieces of information in the video.
A solution is prepared by dissolving 11.60g of a mixture of sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0-cm^3 sample of the solution is then treated with excess HNO3 and boiled to remove all the dissolved gas.
Calculate the activity and activity coefficient for ethanol in this solution. c. Calculate ?mixG for a solution that contains 0.12 moles of ethanol and 0.83 moles of chloroform at 35.0 oC.
a 255- flask contains pure helium at a pressure of 754 . a second flask with a volume of 470 contains pure argon at a
Draw the biuret reaction (i.e. include a structure) with a peptide(s) of your choice. You may use R to denote the amino acid side chains
benefits of using a more favorable direction of the reaction for a routine enzyme activity assay
Select the gas with the largest root-mean-square molecular speed at 25°C. a. NH3 b. CO c. H2 d. SF6
the initial volume of a sample of argon gas is 938 ml at 178degc. if the pressure is held constant and the volume is
A certain substance has a heat of vaporization of 58.15 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.00 times higher than it was at 363 K
What volume of CO2 gas is produced by the complete combustion of 2.6L (C3H8) gas? Assume all gas volumes are measured at the same temperature and pressure. C3H8 + 5O2 ---> 3CO2 + 4H2O
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