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A cylinder with a moveable piston contains 0.76 of gas and has a volume of 330 .What will its volume be if an additional 0.27 of gas is added to the cylinder? (Assume constant temperature and pressure.)
Calculate the theoretical yield of aspirin to be obtained, starting with 2.0 g of salicylic acid. 2. If 1.8 g of aspirin were obtained in this experiment, what would be the percent yield?
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 10.13 mL of 0.08840 M potassium permanganate (KMnO4) to reach the purple endpoint. A blank required 0.18 mL. Determine the percent WO3 in ..
If all the species are at standard conditions except [H+], at what pH will this reaction have a potential of zero? The standard reduction potentials are 1.78 V for H2O2 and 1.36 V for Cl2.
In a proton nmr spectrum a methylene peak appeared at delta = 2.1 ppm when a simple 60 MHz spectrometer was used. At what frequency would this peak appear if the scale were instead given in Hertz
Calculate the membrane potential at 25°C. How would you calculate the membrane potential if it is permeable for Na+ ions in addition to K+
Draw four isomeric alkenes with the formula C9H18. One monosubstituted, one disubstituted, one trisubstituted, and one tetrasubstituted. Each should have the same formula and the same carbon skeleton
Malonic acid titrated with NaOH.,what indicator could be used to find the endpoint,If there is more than once choice, which is best
8 ml of the HCl was used to titrate the pK_a 3.8 group; so 2 ml was enough to titrate the rest of the high pK_a group. The upper pK_a group must have begun the experiment as 80% acid form, 20% base form.
Calculate the pH of an KOH solution if 56.4 mL of KOH soultion is titrated with a 0.875 M HCl and it took 15.6 mL of the HCl to reach the equivalence point.
Calculate the total volume of gas (at 133 degrees C and 758 mmHg) produced by the complete decomposition of 1.56 kg of ammonium nitrate.
What is the rate constant of a first-order reaction that takes 288 seconds for the reactant concentration to drop to half of its initial value?
What volume of each of the following solutions contains the indicated amount of dissolved solute? 1.) 4.50g solute in 0.475 M KNO3 2.) 4.50g solute in 0.475 M AlBr3
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