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Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this?
Calculate the number of kilograms of nitrogen, N2, needed to fill 50 L cylinder to a pressure of 10 atm at temp 25 degrees celsius
Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
15.0mL of 0.50 HCl is added to a 100.0mL sample of 0.200 M HNO2. What is the equilibrium concentration of NO2. ions. (Ka for HNO2= 4.0 x 10^-4)
For a bond between the same two atoms, which has the greatest bond enthalpy: single bond, double bond, or triple bond
The partial pressure of oxygen gas in an atmosphere at STP is approximately 0.2 atm. If I capture 11.2 liters of atmospheric gas at STP in a flask,
Calculate the quantity of gas, in moles, if 127 L at 55.0 C has a pressure of 11.35 kPa.
30.0 mL of water at 24.5 °C was mixed with 40.0 mL of water at 40.0 °C. If the specific heat of water is 4.184 J/g °C and no heat was absorbed by the calorimeter, then the final temperature is _____ °C. (Report to the proper number of significant ..
Draw Fischer projection formulas of the major product of the reaction between E-2-methyl-3-hexene and aqueous Br2.
The decomposition of nitrosyl bromide is shown below (Kp=2.3*10^-3) if .25 atm of each gas is initially present is the reaction at equilibrium? If not explain the direction the reaction must proceed to reach equilibrium.
In vibrational motion of HI (g), the iodine atom essentially remains stationary because of its relatively large mass. Assume that the hydrogen atom undergoes harmonic motion and that the force constant is 313.8 N/m
a. On the basis of your intuitive understanding of the chemical properties of sodium and gold, where in your activity series would you place sodium and gold? b. Will hydrochloric acid react with gold metal to produce gold (III) ions and hyrdogen g..
What happens to these physical properties as the strength of intermolecular forces (London dispersion forces, Dipole-dipole forces, Ion-dipole forces, Hydrogen-bond forces) increases
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