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what is happening in the reaction between pyridine and SnCl4. What are possible products of the reaction?
The Ksp of CaSO4 is 4.93× 10-5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C.
Determine the molarity of the NaOH(sodium hydroxide) solution. In an acid-base titration, 22.13 mL of a sodium hydroxide solution are required to neutralize 24.65 mL of the potassium hydrogen phthalate solution?
The reactant concentration in a zero-order reaction was 9.00×10-2M after 175 s and 4.00×10-2M after 325 s. What is the rate constant for this reaction?
the temperature was returned to the origenal value what would be the partial pressure of each gas be?
In aqueous solution, which of the following would be an acid according to the definitions of the Arrhenius, the Brønsted-Lowry, and the Lewis theories?
The carbon- nuclide radioactively decays by positron emission. Write a balanced nuclear chemical equation that describes this process.
Determine the molar concentration of Na+ in a solution in which 6.315+/-0.004g of Na3PO4 has been added to 1000.0+/-0.4mL
How many grams of the element nickel are contained in 10.0g of a 10.2 wt% solution of nicke sulfate hexahydrate, NiSO4*6H2O?
a sample of a certain beverage contains 1.00g of tartaric acid, H2C4H4O6. The beverage is titrated with 0.100M NaOH, how many millimeters of base are required to neutralize the tartaric acid.
The Winkler titration for the determination of dissolved oxygen involves the treatment of the sample with iodide ion (I-) in the presence of manganese ion catalyst (Mn2+) as follows.
Assuming that all of the sulfate and nitrate originated as acids. calculate the expected pH of this rain water.
Look up the molar mass and the density of 2-chloro-2-methylpropane in a reference book such as The Merck Index. Calculate the number of moles of HCl that are produced by complete hydrolysis of 1.0 mL of 2-chloro-2-methylpropane.
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