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Which are closer together: the two nuclei within potassium fluoride, KF, or the two nuclei within molecular fluorine, F2? Please explain.
For the following combination of reactants, enter the formulae of the products in the space provided and give their states. Separate multiple products with a comma
An aqueous solution of NaCl has a mole fraction of 0.30. What is the mass of NaCl dissolved in 185.9 mL of solution
using a gas sample of 757 ml is compressed at stp to a volume of 118 ml and the temperature raised to 39 degrees c.
the data below were collected for the following reactioninitial rate0.050 0.050 0.0140.100 0.050 0.0290.100 0.100
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 204.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid. Calculate the normal boiling point of this liquid.
How many joules of heat are lost by 3473 kg granite as it cools from 41.1°C to -13.1°C?
How many molecules of carbon dioxide are produced when 121 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water?
State the compositions and relative proportions of the two phases present after a solution initially at thjis mole fraction (0.300) is heated to 394.94.
The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. what is the specific heat of this substance.
an analysis of a series of repeated measurements produced an equilibrium constant of 4.76 with a standard deviation of
Tungsten crystallizes in a cubic unit cell with an esge length of 3.165 (Angrstroms)and with a tungsten atom on each of the corners of the unit cell and in the center of the unit cell
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
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