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Write a net ionic equation for the reaction between aqueous solutions of ammonia and hydrofluoric acid.
During osmosis A) pure solvent diffuses through a membrane but solutes do not. B) pure solutes diffuse through a membrane but solvent does not. C) pure solvent and a solution both diffuse at the same time through a membrane.
Draw the polymer that results from phthalic anhydride and glycerol. d. Are these addition or condensation polymers? e. Describe and explain the differences between the polymers formed from the reaction of phthalic anhydride with ethylene glycol ve..
For phenylanaline can be modeled as particle on a ring. Calculate the probability of finding electrons in one half of the ring from the ground state
Consider the titration of 80.0 mL of 0.100 M Ba(OH)2 by 0.400 M HCl. Calculate the pH of the resulting solution after the following volumes of HCl have been added.
Write the KSp expressions for each hydroxide Calculate the solubility for each compound in aqueous solutions, arrange them from the smallest to the largest.
determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of
Calculate the pH of a buffer tht contains 0.60M ammonium chloride
As a technician in a large pharmaceutical research firm, you need to produce 450.ml of 1.00M potassium phosphate buffer solution of pH = 7.13. The pKa of H2PO4 is 7.21.
What mass of ethylene glycol must be added to 846.7 grams of qater to increase the boiling point to 101.05 Celsius
Calculate the initial velocity of a reaction in terms of Vmax if the substrate concentration is 1/2 the Km (substitute and go).
when potassium nitrate dissolves in water the beaker containing the solution gets cooler. is dissolving this salt an
Malonic acid is a diprotic acid used in the production of pharmaceuticals. A 0.6561 g sample of a m ixture of malonic acid (C3H4O4) and NaCl was titrated to the equivalence point with NaOH. The titration required 54.94 mL of 0.1009 M NaOH. Malonic..
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