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From the following interactions select the lowest and highest energy interactions. A) a +3 and a +1 charge separated by 3 m B) a -1 and a -2 charge separated by 4 m C) a -1 and a +3 charge separated by 2 m D)a -2 and a +2 charge separated by 4 m E) a +2 and a 0 charge separated by 2m
The dinitrogen oxide molecule has the atomic order NNO rather than the symmetrical NON arrangement. Suggest a possible reason.
Calculate the molality of a hydrochloric acid solution that is 26.4% by mass and has a density of 1.19 g mL^-1
a gas sample containing 1.55 mol at 25degc exerts a pressure of 387 torr. some gas is added to the same container and
How much potassium nitrate has to dissolve in water to absorb 110 of heat?
Consider the following initial rate data (at 295 K) for the decomposition of a substrate (substrate 1) which decomposes to product 1 and product 2
In a Diels-Alder reaction between 1mL (12mmol) of cyclopentadiene and 1.393 g (12mmol) of maleic acid, How do you calculate the Theoretical Yield
A compound is analyzed and found to contain 12.1% carbon, 16.2% oxygen, and 71.7% chlorine (by mass). Calculate the empirical formula of this compound.
A gaseous fuel mixture stored at 745mmHg and 298 K contains only methane CH4 and propane C3H8. When 11.5L of this fuel mixture is burned, it produces 774kJ of heat. What is the mole fraction of methane in the mixture
Liquid nitrogen has a density of 0.808g/ml at 77 K. A sample of 2.5 L of liquid nitrogen is allowed to evaporate at 21°C and 1.00 atm of pressure. what volume will the nitrogen gas occupy?(keep your phases straight)
Determine the molecular formula of an unknown perfect gas composed primarily of Nitrogen and Oxygen. At -3 degrees Celsius and when the pressure is 101.325kPa the density is 1.354 g/L.
How many potassium ions must a cell lose in order to produce a membrane potential of - 95 mV for potassium? How does this compare to the number of potassium ions within the cell
What volume of 0.420 M NaOH solution is needed to completely neutralize
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