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How much Tris (1.0 M) (MW: 121.1 g/mol) and EDTA (0.2M) (MW: 372.2 ) solutions are used to prepare a 100ml of TE buffer (10mM Tris and 1mM EDTA)
An unnormalized wavefunction for an electronin a carbon nanotube of length L is sin(2pix/L). Normalize this wavefunction.
How much heat is given off when 11.0 grams of manganese is converted to Mn2O3(s) at standard state conditions? Hf of Mn2O3(s) is -962.3 kJ/mol.
The reported values for one compound (CaHbOc) were as follows: mass: 214.1360 g/mol; percent C and H: 84.07 and 8.47, respectively. Determine the molecular formula of the compound.
Toxic cyanide ion, CN-, can be removed from wastewater by reacting it with hypochlorite, ClO-, in aqueous basic solution. The products formed are N2(g), bicarbonate, and chloride ion. What is the sum of the stoichiometric coefficients in the corre..
which of the following will be more soluble in acidic solution than in pure water?
zinc hydroxide is insoluble in water but dissolves when nitric acid solution is added
If 10.00 mL of 0.250 M NaOH solution is added to 100.00 mL of the above original buffer solution (described in part 1 of this problem), what is the new pH of the solution?
Generate the conversion equations to calculate the degrees in Celsius, Fahrenheit and Kelvin. Hint: Freezing point of water is found at 5.5 'N
The recommended daily allowance of vitamin B2 (riboflavin) is 1.7mg per day for the average adult. If cheese, which contains 5.5 x 10^-6g of riboflavin per gram, were a person's only food source, how many feet of string cheese (diameter 0.15in; de..
calculate the atomic mass of an element with a measure specific heat of 0.14 J/(g C). Express your answer in atomic mass units to two significant figures.
Why is it particularly important to wash the cupric hydroxide intermediate in the synthesis of cupric acetate (verdigris)? Be specific about what is being removed and why it matters.
An aqueous solution of CaCl2 has a vapor pressure of 83.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg .
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