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A 50 ml sample of .5 M HCl is titrated with .5 M NaOH. What is the pH of the solution after 28 ml of NaOH have been added to the acid?
A mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] 5.0 x10-3 M [O2] 1.9 x10-3 M [SO3] 6.9 x 10-3 M Is the reaction at equilibrium
A 14.7-g ice cube is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice. Determine how much heat is absorbed by the melting ice and then use q = mC?T to calculate the temperature change of the..
Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120 C. Explain.
A system is expanded against an external pressure of 2 atm, changing its volume from 10 to 35 L and absorbing 765 J as heat from the surroundings
What mass of gold is produced when 5.90 A of a current are passed through a gold solution for 16.0 min?
Would the desired reaction occure if ethanol or t-butyl alcohol were used instead of isopropyl alcohol in the attempted photochemical dimerization of benzophenone?
What is the density of a substance if a 2.50mL sample has a mass of 0.880g at room temperature? ( show calculations) What is the specific gravity of the substance?
Calculate the mass ( kg ) of the solute C4H8O and the volume ( mL ) of the solvent C6H6 that should be combined to generate 6450 g of a solution that is 2.07 m C4H8O.
What is the expected Nernst equation, in mV, for each decade change in the hydrogen ion concentration for a glass elecrode
Predict the freezing point of a solution of 10.0 g of carbon tetrachloride, CCl4, in 100.0 g of benezene, C6H6. For benezene
Explain Solid State Chemistry, 1) Write the balanced chemical equation for Fe2O3+2Al?2Fe+Al2O3 using the lowest possible whole number coefficients.
calculate the mL of MnO4 added to reach the endpoint. (b) calculate moles of MnO4 added to reach the endpoint. (c) calculate the number of moles of H2O2 in sample.
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