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How many picomoles per microliter of single-stranded DNA are in a 300 ug/mL sample with 1000 base pairs?
A buffer is initially prepared by adding 100 mLs of 0.500 M HOl to 60 mLs of 2.00 M NaOI. The mixture is brought to a final volume of 200 mL by adding water. What is the pH fo the buffer
the solubility of sucrose common table sugar at 70 celsiusis 320 g100 g h2o.a.how much sucrose can dissolve in 200 g of
Problem- The time required for complete burnout of coal(assume pure carbon) when O2 diffusion is the RDS (1 atm, D = 10^-5 m^2/s, 200K, 0.1mm particles whose density is 1500 kg/m^3) exceeds 1 second). Is the statement true or false
The E2 reaction of most compounds is known to proceed preferentially by removal of a proton anti-periplanar to the leaving group. Based upon this generalization
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16. When pH is 7.8
In Europe, gasoline efficiency is measured in km/l . If your car's gas mileage is 40.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142 km trip in Europe
Use the same values reported for "Efficiency of Oxygen Delivery With a Cooperative Protein", but this time let n=1 instead of 2.8. What is the overall efficiency of oxygen delivery with this protein
the ejected electrons have the speed v=1.06x10^6 m/s. What will be the speed of the electrons ejected from the same metal by a light of wavelength 180nm?
How many grams of FeSO4 are there in 206 grams of an aqueous solution that is 14.0 % by weight FeSO4.
The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 560g/mol. What is the molecular formula of the compound?
At 25 °C only 0.0210 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C
A 125 ml sample of a solution that is 2.6x10^-3M in AgNO3 is mixed with a 230 ml sample of a solution that is 0.10M in NaCN. After the solution reaches equilibrium, what concentration of Ag+ remains?
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