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7.36 x 1024 free oxygen atoms how many moles?
7.36 x 1024 free oxygen atoms
A. Identify which between the two given molecules is a gas at room temperature
1. O2 and S
2. C2H8 and C5H12
B. Based on the intermolecular forces present, predict the relative boiling points of each of the substances below. Arrange each series of substances in order of increasing boiling point. State your reason for order you use. ( identify the forces and explain how they affect the boiling point.)
1. Dimethyl ether (CH3OCH3), ethanol(CH3CH2OH), and propane(CH3CH2CH3
2. Br2, Cl2, I2
3. F2, PCl3, OF2
why is beaker ,rather than a conical flask used ,when dissolving the solute.
Salt is often used to melt ice and snow on roads in the winter and the
temperature right now is -4.500ºC. How much NaCl (complete dissociation) would be
necessary to melt 1000kg of ice by bringing down the freezing temperature to -
4.500ºC?
when the solution has been made up ,why is it necessary to mix the contents of the flask thouroughly? what feature of the volumetric flask makes this particularly necessary
when the solution has been made up ,why is it necessary to mix the contents of the flask thouroughly
wich would be better salt for putting on icy roads NaCI or CaCIa? What conditions exist when the equilibrium point is reached further change in the volumes occurs?
What is the difference between the external structure of a crystalline solid from an amorphous solid?
What is the density of N2O2 at STP?
