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Q. Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75?
Q. The solubility product of Gd(OH)3 is 1.8x10^-23. At what pH will Gd(OH)3 begin to precipitate If a solution is 0.010M in Gd3+ ion and the pH of the solution is slowly increased?
Write the electronic configuration in sublevels for the following atoms
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
Determine osmolarity of solution when 25.0 grams of aluminum chloride dissolves in 2.50 liters of H2O.
Determining the limiting reactant and mass of the product - which reactant is the limiting reactant? What mass of product may be produced?
Multiple choice questions in organic chemistry - Which of the following statements are true about the processes of melting and freezing?
Use a drawing program to draw a beaker.
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction.
10M NaF solution is slowly added with stirring, to a solution that contains 10M Ca(NO3)2 and 10M Cr(NO3)3 .Which salt CaF2 - or - CrF3 precipitates first? The Ksp for CaF2 = 5.3x10^-9 & Ksp for CrF3 = 6.6x10^-11
Estimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance.
Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
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