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Why is it that a solution of sodium dichromate in sulfuric acid is perfect to oxidize a secondary alcohol to a ketone...is it equally good a reagent for the oxidation of a primary alcohol to a aldehyde (are there better available?)
how are observations and testable experiments used to distinguish whether something is a theory
calculate the value for E for the cell at 25oC (b) A current is drawn from the cell until 1.20 g of silver have been deposited at the silver electrode. Calculate the value of E for the cell at that stage of operation.
Calculate P,V and T for initial and final states of each process and produce a plot of the two processes on a P,V diagram. Without resorting to equations, explain why the result for part (b) is greater than or less than the result for part (a).
A hypothetical element consists of two isotopes of masses 86.95 amu and 88.95 amu with abundances of 35.5% and 64.5%, respectively. What is the average atomic mass of this element?
The meniscus of mercury curves downward at the edges. Explain using the concepts of cohesion and adhesion.
If the mixture is ignited and the methane completely combusts, producing carbon dioxide (CO2) and water (H2O), calculate the mass percent, the mole fraction, and the partial pressure of CO2 in the container after cooling back down to the initial t..
Determine the concentration of the HCL solution from the data for the standardization of the HCl with the Na2CO3 Na2CO3 had 0.0826 grams in 25ml of water Initial volume of HCl in the burette was 50ml Volume of HCl
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87.
empower minorities and women by thinking outside the box to develop opportunities and mechanisms for learning thus
a physiological saline solution contains 169meql each of na and cl-. determine how many moles of each na and cl- are in
A buffer is prepared by adding 1.00 L of 1.0 M HCl to 750 mL of 1.5 M NaHCOO. What is the pH of this buffer? Ka = 1.7 × 10-4
density of gold is 19.31 gcm3density of platinum is 21.43 gcm3if equal masses of gold and platinum are transferred to
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