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While reasonably dilute HCl and AgNO3 solutions are mixed a white AgCl precipitate forms with some heat evolving. When a Na2S2O3 solution is added to this reaction mixture the white precipitate disappears upon stirring.
How much energy must be removed from a 125 g sample of benzene (molar mass=78.11g/mol) at 425.0 k to liquify the sample and lower them temperature to 335.0 k
Find out the end (final) value of n in a hydrogen atom transition, suppose the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz
If a 88.2 gram charcoal briquette (assume pure carbon) is burned in an excess of oxygen, what mass of CO2 is produced by the reaction
verify the law of multiple proportions for an element x which forms oxides having percentages of x equal to 77.4
List the major elemental and molecular components of gasoline. Include their chemical formulas.
Calculate the work done when 25.0 g of tin dissolves in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior.
The calculations are based on the principal components of meat being fat ( acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet ).information, the calculations correctly calculate what quantity, % fat or % fat-free meat..
A copper cube measuring 1.60 cm on edge and an aluminum cube measuring 1.61 cm on edge are both heated to 55.3 C and submerged in 100.0 mL of water at 22.1 C.
Carbon monixide reacts with steam to produce carbon dioxide and hydrogen. At 700 k the equilibrium constant is 5.10. calculate the equilibrium concentrations of all species if 1.000 mol of each component is mixed in a 1.000-L flask.
The rate constant for a certain reaction is = 2.90×10?3 . If the initial reactant concentration was 0.500, what will the concentration be after 19.0 minutes?
what is the concentration ratio of the free (and potentially toxic) Pb^2+(aq) in the blood to the much less toxic Pb^2+ -EDTA complex?
A solution contains some or all of the ions Cu^{2+}, Al^{3+}, K^+, Ca^{2+}, Ba^{2+}, Pb^{2+}, and {NH_4}^+. The following tests were performed, in order, on the solution
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