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1. If 200 mL of 0.300 M Cr(NO3)3(aq) is added to 100 mL of 4.0 * 10^-4 M NaF(aq) at 25 degrees celcius, will a CrF3 precipitate form? For CrF3 in water at 25°C, Ksp = 6.6 * 10^-11.
2. The 3dxy orbital has its high probability regions lying between the x and y axes. The 3dz2 orbital has its high probability regions mainly on the z axis. The ligands in a complex ion with coordination number six lie on the x, y, and z axes. Which statement is true for the orbitals in this complex ion?
(a) The 3dxy and 3dz2 orbitals have the same energy.
(b) The 3dxy orbital has a higher energy than the 3dz2 orbital.
(c) The 3dxy orbital has a lower energy than the 3dz2 orbital.
Problem- The following reaction was performed in a sealed vessel at 712 C H_2(g) + I_2(g) (equilibrium symbol) 2 HI(g) Initially, only H_2 and I_2 were present at concentrations of H_2= 3.95 M and I_2= 3.00 M. The equilibrium concentration of I_2 ..
In a thermite reaction, powdered aluminum reacts with iron (III) oxide to make aluminum oxide and molten iron What mass of aluminum oxide is produced when 2.3 grams of aluminum reacts with iron (III) oxide
Explain why does acetylation of salicylic acid with acetic anydride take place at the phenolic hydroxyl group rather than at the carboxyl group
solid lithium metal reacts with watergiving a solution of lithium hydroxide andreleasing hydrogen gas. write a balanced
Compute the vapor pressure of water, in torr, above a solution prepared by dissolving 73.00 g of Fe(NO3)3 in 199.0 g of water at 353.0 K. Define the vapor pressure of pure water at 353.0 K is 355.1torr.
A 283-g sample of nickel at 100.0°C is placed in 100.0 mL of water (density = 1.00 g/mL) at 22.0°C. What is the final temperature of the water?
Normalize the following wave function for a particle that can only exist between theta= 0 and pi. Then calculuate the probability of finding the particle within the range theta= pi/4 and pi/2.
If the standard heat of rxn for the rxn is calculated to be -567.4 kJ/g mol FeS2(s) what is the value of Delta Hrxn will you use per kg of FeS2 burned in an energy balance
briefly explain why nitrogen is considered to be the most limiting plant nutrient in humid environments. explain the
Fe 2+(aq) + 6CN- (aq) -->/
A semipermeable membrane separates two solutions. On one side of the membrane the concentration of sodium ions is 0.87 mol/L, and on the other side the concentration of sodium ions is 2.5 mol/L.
the synthesis of ammonia via the haber reaction follows the balanced equation3 h2g n2greg 2 nh3gdh -99.22 kjhow much
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