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1. a) Calculate the pH of a solution which is 0.0030 M in KOH and 0.023 M in NaNO3using activities.
b) Calculate a pH for the same solution, ignoring activities.
Problem- Find the pH of the equivalence point and volume (mL) of 0.200 M HCL needed to reach the equivalence point in the titration of 65.5 mL of 0.234 M NH3.
Explain what is affinity chromatography. Explain how does a protein a column work in the purification of an antibody
14.0 moles of gas are in a 8.00L tank at 20.9°C . Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
Determine if a molecule (or ion) is polar or non-polar, you must determine two factors.
Draw the Lewis structure for F2O (O is the central atom), and predict the molecular geometry using the VSEPR model. Could infrared spectroscopy be used to confirm the molecular geometry that is predicted using the VSEPR model? That is, could the in..
At 25 c and 1.0 atm, 0.25 g of a gas dissolves in 1.00 L of water. What mass of the gas dissolves in 1.00 L of water at 25 c and 3.0 atm?
X-ray crystallography, NMR, and Cryo Electron Microscopy are the three major methods of atomic resolution structure determination.
A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. What is the empirical formula of this compound
Identify the reactant acting as an acid and the reactant acting as a base. Indicate whether the acid is Bronsted Lowry acid, Lewis acid or both.
A 100.0 mL aliquot of 0.100 M weak base B (pKb = 5.000) was titrated with 1.00 M HClO4. Find the pH after 3.4 mL of acid is added. Find the pH after 11.0 mL of acid is added.
A compound of forumula C14H12 gave a positive Baeyer test and burned with a yellow, sooty flame. Treatment with ozone followed by hydrolysis in the presence of zinc gave formaldehyde as one of the products.
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively
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