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1. As we know a;; homes used hot water tank and every hot water tank is an anode(called a dip tube) with the time this erode away in to the H2O now explain what health risks may arise people use this hot water in the preparation and cooking ?
2. What is the equilibrium constant for this reaction (1/2) N2(g) + (1/2) O2(g) <===> NO(g) at 1000 K if free energy of formation of NO = 78 kJ mol¯1 at the temperature of an automobile engine (1000 K). ?
Whats the reduced mass of CO2. I know how to do it for CO but since its 3 molecules do you go m1+m2+m3/m1m2m3 or is m2 just 32
how would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
why is the presence of non-atomic species, such as metal oxides, detrimental to an analysis using atomic spectroscopy. which type(s) of atomizers can suffer from this effect and why.
A solution containing 0.2 g/mL of a pure R enantiomer in a 1 dm polarimeter rotataes plane polarized light by +3 degrees. What is the specific rotation of the R isomer. What will be the specific rotation of its S isomer
calculate the amount in grams of calcium sulfate which is formed when 185 grams of calcium fluoride are reacted with excess sulfuric acid.
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
Boron nitride, BN, has a graphite-like layered structure in which the layers have eclipsed alignment where the B and N atoms in alternative layers in the direction perpendicular to the layers. Rationalize the difference between this structure and ..
A particular first-order reaction has a rate constant of 1.35x10^2 at 20 degrees C . What is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol?
If the gas was not pure butane but 10 mole percent propane and 90 mole percent butane then determine how would the MW value be affected?
Nitric acid is not only a strong acid but also a strong oxidizing agent. In hot concentrated acid solution, the reaction with zinc is: 3 Zn(s) + 8 HNO3 ? 3 Zn(NO3)2(aq) + 2 NO(g) + 4 H2O
good primary standard for aqueous acid-base titrations. Calculate the mass, in grams, of KHP needed to produce 250. mL of a 1.50 M solution of KHP.
Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced by an individual who sweats out 400 mL of water at 37 degrees Celsius. Assume all sweat evaporates.
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