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A sample of impure tin of mass 0.520g is dissolved in strong acid to give a solution of Sn2+. The solution is then titrated with a 0.0448 M solution of NO3-, which is reduced to NO(g). The equivalence point is reached upon the addition of 3.79×10-2 L of the NO3- solution.
Find the percent by mass of tin in the original sample, assuming that it contains no other reducing agents.
Explain what are the possible manipulation errors that might contribute to the errors in results of obtaining a larger amount of NaCl than was present in the original sample
How many grams of lead(II) sulfate is produced from 25.00mL of 0.15M Lead(II) nitrate and 40.00mL of 0.25M sodium sulfate. Which reagent is limiting and how many grams of the excess reagent are remaining after the reaction is complete
a compound was sent off for elemental analysis and was found to have following composition c 70.6 h 5.9 o 23.5 if the
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Predict if the following conditions would result in the formation of a preecipitate: a. 0.0025 M Fe3+ at pH 6.00 b. 0.0025 M Ba2+ and a 1.25x10-4 M solution of sodium sulfate c
The normal boiling point of pure water is 373 K. As a solute dissolves in water, the boiling point of the solution will (a)Decrease (b)Change unpredictably (c)Remain the same (d)Increase
what purpose does sodium carbonate serve during the extraction of caffeine from tea leaves?
Construct a model of 2-chlorobutane. Which carbon in the chain is a chiral center. What has highest priority. Lowest
Ammonium hydrogen sulfide decomposes according to the following reaction, for which Kp = 0.451 at a given temperature. If 55.0 g of NH4HS is sealed inside a 5.00 L container at this temperature, calculate the partial pressure of NH3(g) at equilibr..
Which of the following is an experimental fact that valence bond theory cannot explain, but molecular orbital theory can? the paramagnetism observed for O2 the N-N bond order in N2 the rotational barrier about the C-C bond in ethylene the existenc..
Charcoal (C) and propane (C3H8) are used as fuels in backyard grills. Balance chemical equation for charcoal (C) combustion (do not include phases).
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
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