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Problem- What is the solubility of oxygen in lake water at 28celsius?? Assume that the pKH of oxygen at this temperature is twice that of CO2. Give your answer in mg/L.
Please take care to answer the question as mark are equally granted for each point
The following reaction takes place when some drain cleaners are added to water. What mass of hydrogen gas will be produce from 4.76 g of aluminum and 3.23 g of NaOH- 2Al(s) + 2NaOH(s) + 6H2O(l) -> 2NaAl(OH)(aq) + 3H2(g)
The solubility of a slaked lime, Ca(OH)2, in water is .185g/100mL. What volume of .00400 M HCl is needed to neutralize 10.0mL of a saturated Ca(OH)2 solution
During the compression, a heat transfer of 1.6 Btu occurs from the nitrogen to its surroundings. Assuming ideal gas behavior, determine A.) the mass, in lb of the nitrogen B.)the work in Btu.
chemical kinetics - show that only the reactants of the slow step of a reaction are found in the rate law of the
when silver metal reacts with bromine at 298 k a spntaneous redox reaction takes place. calculate e initial andnbsp
how many grams of dry need to be added to 2.30 of a 0.400 solution of ammonia to prepare a buffer solution that has a
The molar mass of cellulose is approximately 6.0 x 10^5 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 10^3 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5.
Question- Calculate the pH of a buffer solution made by mixing 196 mL of a 1.78 M trimethylamine, (CH3)3N, solution with 245 mL of a 1.31 M trimethylammonium chloride, (CH3)3NHCl, solution.
What Celsius temperature,T2, is required to change the volume of the gas sample in Part A ( T1= 35 degrees celsius, V1= 1120 L) to a volume of 2240 L? Assume no change in pressure or the amount of gas in the balloon.
A Breathalyzer instrument contains two ampules, each of which contains 0.75 mg K2Cr2O7 dissolved in 3 mL of 9 mol L?1 H2SO4(aq). One of the ampules is used as reference. When a person exhales into the tube of the Breathalyzer, the breath is direct..
During a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no change) your calculated value for the molar volume of O2 at STP.
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
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