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Explain what is the concentration of Pb2+ must be exceeded to precipitate PbCl2 from a solution that is .01M in the chloride ion Cl- Ksp for lead Chloride is 1.17x10-5
Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
the element neptunium possesses 93 electrons and weighs 237 amu. Calculate the contribution (in %) of its electrons to its total mass.
what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
In each of the following pairs determine the substance that has the highest boiling point. PH3 or NH3 Br2 or ICl GeH4 or CH4 LiF or HF WHY
considering the given equation hcl x3po42 h3po4 xcl2 it is given thatnbspwhen a particular metal a reacts with
The mens world record for swimming 1500.0 m in a long course pool is 14 min 34.56 s. how many seconds would it take to swim 0.400 miles
If the total number of electrons in a homonuclear diatomic molecule is 16, what is the overall bond order of the molecule
the concentration of NO in teh vessel is 0.161 M. At equilibrium the vessel contains N2, H2O, and H2. What is the value of the equilibrium constant Kc for the following reaction? 2H2 (g) + 2NO(g) 2H2O (g) +N2 (g)
Which of the following substances would have a standard enthalpy of formation equal to O kj/mol. Select all that apply
If the concentration of X is increased to 2.0 M and the concentration of Z to 3.0 M, how long should this reaction take?
The equilibrium constant Kc equals 1.6 10-2 at 200°C. What are the moles of substances in the equilibrium mixture at 200°C if we start with 0.021 mol HBr in a 1.3-L vessel?
A small cylinder of helium gas utilized for filling balloons has a volume of 2.30 L and a pressure of 1850 atm at 25°C. Explain how many balloons can you fill if each one has a volume of 1.3 L and a pressure of 1.25 atm at 25°C
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