Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
PH and Biochemistry
Determine the weight in grams of sodium dihydrogen phosphate (M.W.138.01) and disodium hydrogen phosphate (M.W 141.98) needed to prepare 1L of a standard buffer at pH 7.00, with a total phosphate concentration of 0.100M.
Okay I know that the pKa is going to be 6.86. I am therefore going to take the difference of pH 7 and pH 6.86 to get 0.14. I then do 10^(14) to get 1.38. However, I am lost after that step. I cannot seem to figure out the concentration. Once I know that, I can find the mass of each of the molecules.
Medical technicians use deoxyglucose labeled with fluorine-18 to locate tumors using a pet scan. A medical technician injects a patient with a therapeutic dose of fluorine-18.
Compute the molarity of the hydroxide ions (OH- )in a solution that has been made by adding 70.3 grams of barium hydroxide (Ba(OH)2) in H2O(water) and diluting the solution to a final volume of four litres.
Determine the solubility of N2 in water exposed to air at 25 C if the atmospheric pressure is 1.2 atm. Assume that the mole fraction of nitrogen is 0.78 in air and the Henry's law constant for nitrogen in water at this temperature is 6.1 10-4 M/at..
Strontium metal crystallizes in a cubic unit cell which has an edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr metal is 2.54 g/cm3.
Measuring concentration of acetic acid and other organic acids in an aqueous solution, What analytical method would be employed to measure and determine the concentration of each acid in solution. Would this be a GC/MS analysis
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
The solution to Chemistry, Are there differences between having electron-donating groups and electron-withdrawing groups
What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution.
magnesium hydroxide is 54.87 oxygen by mass.How many grams of oxygen are in 175 g of the compound?How many moles of oxygen is in this.
You burn 0.0956 g of the compound and isolate 0.1356 g of CO2 and 0.0833 g of H2O. What is the empirical formula of the compound.
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.
Molar concentration, 2.20g of solid NaOH are added to 250mL of a 0.10M FeCl2 solution. Given that Ksp for Fe(OH)2 is 1.6 x 10 -14, calculate the following
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd