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Outline a procedure for the recrystallization of benzoic acid that contains both a soluble and an insoluble impurity (using water as the solvent).
Helium gas at 104.0 kPa and 372.0 K is located within a cylinder with a piston. Initially the gas occupies 0.3000 m3. While a constant force, F, is applied to the end of the piston so that the pressure inside the cylinder is held constant at 104.0..
efficiency for conversion of potential to electrical energy, and 8% loss of the resulting power in transmission, what is the mass flowrate of water required to power a 200-watt light bulb?
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq).
Predict the products likely to be formed via the anti- addition of Br2/acetic acid to trans- cinnamic acid. • What is the predicted m.p. of the brominated product(s) you prepare via this method
Assuming that this reaction is complete and that there is 153 mg/l of CaSO4 initially present, what is the mass of soda ash that must be added to 1 liter of the water
Citric acid, represented by H3Cit, is a triprotic acid. A student mixes together the following solutions in a styrofoam coffee cup: • 5.00 mL of 0.64 M citric acid
The following equation represents an oxidation-reduction reaction that uses oxygen. Show how this reaction can also be defined as an oxidation-reduction reaction in terms of electron transfer Pb(s)+02(g) --> PbO(s)
What is the osmotic pressure, in atm, of a solution formed by dissolving 17.2 g of AlCl3 in 0.588 L of water at 57.4 oC? (R = 0.0821 L-atm/mol-K; 0 oC = 273 K)
What is the total volume of gases produced at 819K and 1atm pressure when 256 g of ammonium nitrate (NH4NO2) undergoes the following decomposition?
1.60 m solution78.0 ml is diluted to a volume of 278 ml and a 139-ml portion of that solution is diluted using 175 ml
Calculate the wavelength in picometer of gamma ray radiation whose frequency is 9.74 × 1019 Hz. Express answer in scientific notation.
what is the chemical formula of a homonuclear diatomic ga if it has a pressure of 1.40 atm and a density of 1.82 gl at
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