Why adding a small amount of a grignard reagent
How does adding a small amount of a Grignard reagent solution to a Grignard reaction help the reaction get started? Hint: The presence of water (moisture) is a major reason a Grignard might not start.
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A length of metal wire has a radius of 5. x 10^-3 m and a resistance of 0.1. When the potential difference across the wire is 11V, the electrond drift speed is found to be 3.17 x 10^-4. On the basis of these data, calculate the density of free ele
What are the boiling point and freezing point of a 2.47m solution of naphthalene in benzene?( The boiling point and freezing point of benzene are 80.1 degree celsius and 5.5degree celsius, respectively.)
If the speedboat travels 58.4 km/h, in what direction should it head? Express the direction as a compass bearing with respect to due north.
What is the melting point of this substance? (Hint: first determine the resistance of the platinum resistance thermometer at room temp, 20C).
An aluminum wire carrying a current of 4A has a cross-sectional area of 9e-06 m2. Find the drift speed of the electrons in the wire. The density of aluminum is 2.8g/cm3.
A river has a steady speed of 0.461 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. How much time is required in still water for the same length swim?
A 60 liter tank containing an ideal gas at a pressure of 40 atmospheres is connected by a valve to a 30 liter tank of an ideal gas at 70 atmospheres. The valve is opened slowly and the gases in the two tanks mix.
An electron is released from rest a distance d from an infinite charged plane with surface charge density 4.199140625e-07 C/m2. Find the distance d if the electron hits the plane with speed 10000000 m/s.
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Question: What are the indications for administering Shingrix in a patient over the age of 50? What dose would you administer?
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