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-Which of the following ions will react with water in a hydrolysis reaction: Na+, Ca+2, Fe+3, NH4+, F-, SO32-, Br- and what will the resulting pH of the solution be (acidic, neutral or basic)?
-Calculate the pOH, [H+] and [OH-] for AlCl3, NH4Cl, and K2CO3 solutions.
-What is the pH of a 0.10 M NaClO solution if the Ka for HClO is 3.0 x 10-8?
-Using the Henderson-Hasselbalch equation, determine the pH of a buffer that is 0.120 M lactic acid (HC3H5O3) and 0.100 M sodium lactate (NaC3H5O3). The Ka for lactic acid is 1.4 x 10-4.
Ruthenium can form complexes with chloride and water ligands with varying stoichiometers. Three such complexes are: [RuCl2(H2O)4]+ [RuCl3(H2O)3] [RuCl4(H2O)2] a.) What is the oxidation state of ruthenium in each of these complexes
when filled with water (d=1.00 g/cm 3) the flask and it contents weigh 518.3 g. what is the flask's volume?
Which of the following signs on q and w represent ( work is done on the systemby gaining heat from the surrounding) ? a- q=+, w=- b- q=-, w=+ c- q= + ,w=+ d- q=- , w= -
How much of this compound must be weighed to make 175.0 mL of a 0.15 M solution? How many mL of the 0.15 M solution should be diluted to prepare 150.0 mL of a 0.050 M solution
Suppose you plant grass on this square meter of earth. Some people might argue that the growth of the grass (or of any other living thing) violates the second law of thermodynamics, because disorderly nutrients are converted into an orderly life f..
The solid and toluene together weigh 51.05 g. The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid
the reaction is first order in and under certain conditions has a rate constant of 0.00752 at 20.0 . a reaction vessel
For the strong base solution 4.0×10?3 M Ca(OH)_2, determine [OH^-], [H_3O^+], pH, and pOH.
Radical chlorination of 2-bromopropane produces all possible monochlorinated products. How many constitutional isomers are formed. How many of these constitutional isomers are chiral
A chemist wants to make 4.5L of a 0.340M CaCl2 solution.What mass of CaCl2 (in g ) should the chemist use?
Although the name defines a structure unambiguously, it is not correct substitutive name. Give the correct name for the compound.
One component of wet rust is Fe(OH)2' How many grams of oxygen, O2, are in 1 kg of Fe(OH)2
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