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What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5?
Ammonia gas decomposes according to the equation: If 15.0 L of nitrogen is formed at STP, how many liters of hydrogen will be produced (also measured at STP)
Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: \rm 2Al}+3Cl_2rightarrow2AlCl_3 What is the maximum mass of aluminum chloride that can be formed when reacting 26.0g of aluminum
An important space shuttle mission has been interrupted with an emergency that will delay the return of the crew to earth indefinitely. You are an emergency team that has been assigned the task of determining how long the crew can survive before c..
estimate the ph and the concentration of all species in solution at equilibrium for a 0.15 m solution of ascorbic acid
Consider the highest angle line on the diffraction pattern of Cu and of Pb, measured at 20 celsius with CuK radiation. by what percentage is the intensity of each of these lines reduced by thermal vibration of the atoms
can you find out the name and formula of the unknown compound and determine the identity of the element?
Calculate the number of coulombs required to produce 6.53 g of Hg from an aqueous solution of Hg2+
A first order decomposition reaction has a rate constant of 0.0418yr-1. What is the half-life of the reaction in yr
What is the value of Kc for the reaction 2A(g) + 3B(g) 2C(g) + D(g) if at equilibrium [A] = 0.60 M, [B] = 0.30 M, [C] = 0.10 M and [D] = 0.50 M? A) 0.088 B) 0.51 C) 2.4 D) 0.15
The flask was then shaken until the solution was uniform. A 40.0-mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100 mL. of the final solution?
A 33.0 g sample of a nonelectrolyte was dissolved is 700. g of water. The solution's freezing point was -2.84°C.
What is the concentration of OH (in M) initially present in a 12 M NH solution? Hint: The K of NH is 1.8x10. Express your answer to two significant figures.
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