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A sample of water is to be analyzed for solids content. Ten liters (10 L) of water are passed through a filter initially weighing 15 g. After drying at 105oC, the filter plus residual weighs 43 g. The filter is heated to 550oC, and the filter plus residual then weighs 37 g. Another 10 L sample of the same water is evaporated, without filtering, yielding a residual mass of 40 g. This residual is heated to 550oC and the remaining mass is reduced to 25 g. What are the values for TS and TDS for this water?
What is the mass of a piece of aluminum that is found to displace 13.4 ml of water and has a density of 2.66 g/cm^3
Equal volume of 0.220 M AgNO3 and 0.140 M ZnCl2 solution are mixed. calculate the equilibrium concentration of Ag+ and Zn2+
a solution of ammonia and water contains 2.00times1025 water molecules and 5.30times1024 ammonia molecules. how many
Use the Henderson-Hasselbalch equation to calculate the pH of each solution: a solution that is 0.140 in propanoic acid and 0.125 in potassium propanoate.
how much kaolin (in grams) should be used to prepare 2.0g of a 1:30 dilution of hyoscine in kaolin? Both substances are solids.
use the values for delta G to calculate Kp for the above reaction at 500 degrees celcius.
A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodium carbonate was produced. Calculate the atom economy of this reaction.
what is the relative error in the determination of a density for which the accepted value is 0.945 g*cm^-3 and the experimental value
what is the color of cocl2 (aq) solution at boiling water temperature? And in which direction did the equilibrium shift upon
If 300kJ of heat are exchanged between the system at -5degrees C and its surroundings at 30degrees C, the entropy of the systems plus
what is the concentration of 0.44 baoh2 in terms of normality?how many milliliters of 22 wv na2so4 would be required to
a nurse has to administer a 1000ml iv solution in 8 hours. find the number of drops per minute knowing the iv solution
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