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calculate the volume of hydrogen produced at 1.50 atm and 19 degress celsius by the reaction of 26.5 g of zince with excess hydrochloric acid according to the balanced equation
Zn(s) + 2HCL(aq)----> ZnCl(aq) + H2(g)
You can get sunburn on a cloudy day, but you can't get sunburn even on a sunny day behind glass. Explain.
Calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous under standard conditions.
The concentration of Na^+ in a 0.73 M Na2CO3 solution is: (Assume complete dissaciation) A. 0.43 M B. 0.88 M C. 1.02 M D. 1.28 M E. 1.46 M
Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/ml . What is molarity?
How much heat is absorbed when 45.00 g of C(s) reacts in the pressence of excess SO2(g) to produce CS2(l) and CO(g) according to the following chemical equation?
Calculate the number of grams necessary to prepare 50. ml of 0.45 M NaCO2H. Calculate its pH.
According to the following reaction, how many moles of potassium sulfate will be formed upon the complete reaction of 0.462 moles potassium hydrogen sulfate with excess potassium hydroxide
No desiccator is available. the sodium carbonate is cooled to room temperature, but the humidity in the room is high. how will this affect the reported molar concentration of the hydrochloric acid solution. Will it be too high, too low, or unaffec..
A solution of 350mg of optically active 2-butanol in 10 mL of water, placed in a 20 cm cell shows an optical rotation of +6 .24 degrees. What is the specific rotation of this compound
Calculate the partial pressure of water at 23.6 Celsius by interpolation from the vapor pressure table.
calculate the theoretical moles of NaOH that should be necessary to reach the equivalence point
Consider three different compounds of the hypothetical element X using the table of bond lenghts as a reference, rank the three compounds shown below in order of increasing
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