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Calculate the ion mobility of 100nt long DNA molecules and single nucleotide molecules. Correlate this to the conductivity of the solution.
A student analyzed and recorded two potassium emission spectra: 1) one using 0.10 M Potassium sulfate solution; 2) one using 0.10M Potassium nitrate solution;. Determine why will significant differences be observed in the two emission spectra.
a rectangular block of plastic, measuring 1.50 cm by 2.29 cm by 1.84 cm, floats in the middle of the Pacific Ocean. The volume of sea water displaced by the plastic block is 5.46 cm3. Assuming the density of the sea water is 1.025 g/mL, what is th..
What is the vapor pressure of each of the solution components in the mixture? What is the total pressure above the solution?
if 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
how many grams of MgCl2 are contained in 225mL of a 0.650 M solution
What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00, 2.00, 5.00 and 10 x 10 -3 M KMnO4 solutions?
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
Consider the following electrochemical cell at 298 K. One compartment contains a 1.00-M solution of silver nitrate. The other compartment contains a saturated solution of silver iodide
how many grams of CaCl2 should be dissolved in 500.ml of water to make a 0.20m solution of CaCl2
which gives the order for first ionization energies smallest to largest
The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-eighth of its original pressure, and its absolute temperature is decreased to one-fourth of the original. What is the final volume of the gas?
What mass of Mg is formed by passing a current of 5.50 A through molten MgCl2 for 2.80 days?
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