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The energy levels the electron can occupy in the He^+ ion can be calculated using the energy level equation. Calculate the energy in kJ/mol of the electron when it is in the n=5 level. Energy level equation: (-2.178 x 10^-18 J)(Z^2/n^2) in which Z=nuclear charge, n=quantum number.
Draw the skeletal structure of the bromoalkane reactant with the molecular formula C5H9Br that gives the alkene shown as the exclusive product of E2 elimination.
Calculate the work done if a gas is compressed from 8.1 L to 3.9 L at constant temperature by a constant pressure of 2.3 atm, and give your answer in units of joules.
Calculate the pH of a buffer solution obtained by dissolving 22.0 g of KH2PO4(s) and 40.0 g of Na2HPO4(s) in water and then diluting to 1.00 L
In a reaction that is first-order with respect to reactant A and second-order with respect to reactant B, what will happen to the rate of the reaction if we
1.a pepsin of 3 grams get dissolved in water and formed a solution of 10.00 ml it was found that the osmotic pressure
what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
Calculate the rate constant for the reaction when the reactant concentration in a first-order reaction is given 7.30×10-2M after 15.0s and it is also reported 4.40×10-3M after 65.0s . ?
Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer
A compound is 40% C 6.70% H and 53.3% O by mass. the molecular formula of this compound is 60 amu, what are the subscripts of C, H, O
The mass of an atom of beryllium is 1.5 x 10^-26 kg. How many beryllium atoms are present in beryllium film of mass 0.37 g used as a window on an x-ray tube
On a hot day a room air conditioner uses 1.0 kW of electrical power and works with a coefficient of performance of 2.9. How much heat does the AC remove from the room in 1 min?
If 3.7 g of butanoic acid, C4H8O2, is dissolved in enough water to make 1.0 L of solution, what is the resulting pH
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