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What is the wavelength, in nm, associated with a 2000. kg truck traveling at a speed of 20 m/s, that is, considering the truck to be a "matter" wave?
A. 2.65*10^-29nmB. 6.02*10^-29nmC. 1.65*10^-29nmD. 7.50*10^3nmE. 1.33*10^-29nm
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.519 grams of iron and 21.0 mL of 0.590M copper(II) sulfate react to form as much product as possible, how many millimoles (mmol) of the non-limiting reactant will remain unuse..
What is the role of vacuum filtration in this process of Recrystallization. How do you do it
Describe the preparation of 40 liters of 0.02 M , pH 6.9, starting from a 2 M H3PO4 solution and a 1 M KOH solution
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion,the temperature of the water is 26.55 C.
Describe the preparation of 3 liters of a .2 m na-acetate buffer, ph 5.0, starting from solid sodium acetate trihydrate (mw 130) and a 1 M solution of acetic acid.
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.500 M solution of ammonia, NH3,to prepare a buffer solution that has a pH of 8.79. Kb for ammonia is 1.8*10^-5.
An aqueous solution has a vapor pressure of 82.6 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent
If you begin with 18ml of 0.25 M NaOH(aq) and add 100ml of chlorine gas at 0.993 atm and 25degrees C and the final temp of the calorimeter is 28.42 degrees C, what is the heat capacity of the reaction. Remember that there is the water the NaOH is ..
Show the full mechanism of bromination for both 2,4-nitrophenol
You dilute 1 ml of this solution to 25 ml with distilled water; the measured absorbance is 0.2. What is the concentration of the original concentrated solution
How many ppm of Pb2 ion are contained in this solution? How many ppm of nitrate ion are contained in the same solution?
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