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Explain why the 1-bromobutane must be dried with anhydrous calcium before purifying it by fractional distillation. In simple terms please
Devise a synthetic strategy to transform 1-Bromobutane to heptane
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette
Ultrahigh vacuum is considered to be around 10-11 Torr. What is the mean free path of a molecule in such a vacuum?
5.00 g of SO2 and 5.00 g of CO2 were placed in a 750.0 mL container at 50.0 °C. What is the partial pressure of CO2 in the container?
Define how bicarbonate buffers aquatic systems against drastic changes in pH. (Illustrate reaction equations)
estimate the enthalpy change for the reaction between 1 mol c2h5oh as liquid ethanol, a fuel made by fermenting corn, and o2 to yield co2 and h2o under standard conditions by using bond enthalpies,
What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the weak acid H2CO3 (aq) and the strong base NaOH (aq)?
Give a nanoscale interpretation of the fact that at the melting point the density of solid mercury is greater than the density of liquid mercury, and at the boiling point the density of liquid mercury is great than the density of gaseous mercury.
Compute the half-life for the decomposition of CO2 which is first order with respect to CO2 at 1000 Kelvin with K=1.8x10-13 sec.
Washing soda is often added to detergent formulations to make the wash water more basic. What is the formula of the NONHYDRATED form of washing soda? Does it increase or decreased the pH of the wash water?
A sample of gas has a temperature of 0 celsius and a volume of 453 m. At constant pressure, the temperature is raised to 100Celsius. What is the new volume
determine the mass of unknown liquid that you transferred to the flask before heating in the determinig the molar mass of a volatile liquid by the dumas method expermant
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