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Question- The bond length of KF is 269.00 pm. What would be the dipole moment, in D, of this compound by assuming a completely ionic bond? Remember e = 1.60x10^-19 C; 1 D = 3.34x10^-30 C*m.
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A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH. What is the concentration of the NaOH
Calculate the internal energy that must be added to a mole of helium gas to raise its temperature from 300k to 1000k
question a deep-sea diver uses a gas cylinder with a volume of 50.0 l and a content of 51.2 g of o2 and 132.6 g of he.
The change in enthalpy Delta H for a reaction is -39.6 kJ/mol. The equilibrium constant for the reaction is 4.4×103 at 298 K.What is the equilibrium constant for the reaction at 635 K?
The polyatomic ion [HCNXeF] + has all the atoms bonded in the listed order, as well as its molecular geometry is entirely linear. Provide a Lewis structure that is consistent with this molecular geometry.
The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40-carat spherical diamond, what is the diameter of the diamond in millimeters?
what volume should you dilute 43.5mL of a 4.00M KI solution so that 24.0mL of the diluted solution contains
indicate whether each of the following solutions are acidic, basic, or neutral at 25 degrees C: a)[H3O^+]=6.0x10^-12 M b)[H3O^+]=1.4x10^-4 M c)[OH^-]=5.0x10^-12 M d)[OH^-]=4.5x10^-2 M
A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(..
If the pressure exerted by ozone, in the stratosphere is 3.0*10^-3 atm and the temperature is 253 K, how many ozone molecules are in a liter?
Calculate the volume of concentrated sulfuric acid, containing 98% H2SO4 by mass, that would contain 40.0 g of pure H2SO4.
If C6H12O6 >>> 2 C2H5OH + 2 CO2 represents the fermentation of sugar to produce alcohol, and reaction is only 40.0% efficient (% yield), what is the actual yield of alcohol from 454g of C6H12O6
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