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Find out the correct change in temperature if the two solutions used are not at the same initial temperature, a correction must be made to. How should this be done?
Explain how do you know when to place a double or triple bond in a Lewis structure? Also how do you know what is connected to what when given a molecular formula such as H3PO4?
What is the molarity of the Na2S2O3 solution? A 25.00 mL sample of 0.0100 M solution of KIO3 is reacted with an excess of KI. It requires 32.04 mL of Na2S2O3 solution to titrate theI3-&
Write down a detailed step-by-step procedure for preparing the 500.00 mL of the KIO3 solution in part a, using pure dryKIO3. Make sure that your procedure uses equipment that allows for the neede
Determine the numbers of grams of solid NaOH are needed to prepare the 200 mL of a 0.05M solution? M.W. of NaOH = 40 g/mol
Calculate the freezing point (in C)of a solution prepared by dissolving the 11.3g ofCa(N03)2 (formula weight = 164g/mol) in 115gof water? The molar freezing-point depression constant for the wate
Determine the vapor pressure over a 30C water solution which is having 652g of sucrose, C12H22O11, per liter of solution? Suppose the solution behaves ideally.
The density of methanol, CH3OH, is 0.791 g/mL and the density of acetonitrile, CH3CN, is 0.786 g/mL. A solution is made by dissolving 15.0 g of methanol in 250.0 mL of acetonitrile.
Copper-55 with a mass of 64.9278 u and copper-63 with a mass of 62.9298 u are in a mixture. Explain how do you determine the percent natural abundance of the two isotopes if the atomic mass of copp
Calculate the highest occupied molecular orbital for the species, pentadienyl anion? And if someone knows the answer to this question, how do you know. Discuss in detail.
Determine the numbers of degrees of temperature rise will occur when a 25.0g block of aluminum absorbs 10kJ of heat? The specific heat of Al is 0.900j/g degrees C.
Determine the numbers of grams of silver chloride can be prepared by the reaction of 100.0 mL of .20 M silver nitrate with 100.0 mL of.15 M calcium chloride? Describe the concentrations of
Determine the temperature change that occurs when the 1 mol of H20(l) is subjected to an increase in pressure of 2.24 * 10^6 Nm^-2 while maintaining the constant volume.
Suppose you need to make 200 mL of .1 M solution of AgNO3. you have Ag(NO3) and AgNO3*H20 solids available.
What is the energy of activation (kJ/mol) for this reaction when the chemical reaction A + 2B-> 2 D has a rate constant of 4.8M-1d-1 at 25oC and29.8M-1d-1 at 25oC.
Describe or name a molecule that can be so produced. Experiments by Stanley Miller and others showed that complex "biological" molecules are produced when a mixture the chemicals in the early
The sugar glucose contains H, C, and O and has a mass of180.0634 amu as calculated by the high-resolution mass spectrometry. Glucose contains an equal number of oxygen and carbon atoms.
Name each compound that you cite as an illustration. For simplicity assume that any nitrite ions serving as ligands in a given compound are all either N- or O- bonded.
2,3-dimethyl-1,3 butadiene was treated with 1 mole ofBr2 . Bromine was added to the dyne in a 1,4 fashion. From this information illustrate the structure of the isolated products.
If so how much water would spill out? Discuss how much water could you add to the container after the ice melted? In a would the water spill out of the container once the ice melted?
Calculate the iodide ion concentration in a solution if the addition of an excess of 0.100 M Pb(NO3)2 to 32.3 mL of the solution forms the 385.9 mg of PbI2?
Determine the value of Kp for the equilibrium above, after the reaction the total pressure inside the flask was calculated to be 6.10atm if the 24.0 percent of the O2reacted.
Discuss how long will it take a 10.0 - gram sample of 14 C to form the 5.0 grams of nitrogen gas, when the half life of 14C is 5760 years.
Explain what approaches seem to represent the best strategy for obtaining one? Draw the expected difficulties with attempted the syntheses of a one-coordinate complex.
Calculate the values of Δ0 and B' where the following absorption bands are found in the spectrum of [Cr(CN)6]3-: 264nm(charge transfer), 310 nm, and 378nm.