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In the laboratory you dissolve 24.4 g of sodium iodide in a volumetric flask and add water to a total volume of 250 mL.
What is the molarity of the solution? M.
What is the concentration of the sodium cation? M.
What is the concentration of the iodide anion? M.
Experiments have shown that the average frequency of chirping by a snowy tree cricket depends on temperature as shown below. Chirping Rate Temperature
Calculate how many grams of Copper II carbonate are obtained when 5.2ml of an 3.0M aques solution of sodium carbonate is mixed with 10.0ml of a 5.0M aques solution of Copper II Nitrate.
The same experiment is repeated a third time but now in the presence of arsenite. How would the production of radioactive carbon dioxide now compare with the earlier two experiments? Why? Be as specific as possible in accounting for any difference..
A TLC plate showed two spots with Rf values of 0.25 and 0.26. The plate was removed from the developing chamber, the residual solvent was allowed to evaporate from the plate, and then the plate was returned to the developing chamber
What experimental error would cause a mistaken increase of copper into the cycle? What is done in the Experimental Procedure to avoid this "positive" error? Explain a. Explain what factors may contribute to a greater than 100% recover of copper in th..
What chemical reaction (formula) is involved in the thermal decomposition of ammonium persulfate (NH42S2O8)
what mass of naoh s must be added to 1.0 l of 0.050 m nh3 to ensure that the percent ionization of nh3 is no greater
Compute the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.080 M NaOH
When naming cis/trans isomers, when will i have cis,cis or trans,trans, or cis/trans.-more than one cis and trans.
What is the oxidation number of boron in sodium tetraborate, Na2B4O7? Given that 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), if 82.0 g of NH3 react with sufficient oxygen, how many grams of NO will be formed?
1 if 50 kj of heat are given off by a chemical reaction in aqueous solution and all the heat is absorbed by the
Magnesium can be obtained by precipitating Mg^2+ as Mg(OH)2(s). The Ksp of Mg(OH)2 is 6.0*10^-10. The magnesium ion concentration is 0.059M. If a sample of solution is treated so its [OH-] concentration is maintained at 2.0*10^-3M. What will be [M..
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