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Determine the temperature change, together with the volume as well as concentration of the acid and base, noted in the hazmat team's response regulation information. Forecast how each of the following variations would affect the observed temperature change. Elucidate your predictions.
(a) using 100 mL 1M hydrochloric acid and 100mL 1M sodium hydroxide
(b) using 50 mL 2M hydrochloric acid and 50 mL 2M sodium hydroxide
(c) using 25 mL 1M hydrochloric acid and 75 mL 1M sodium hydroxide
(d) using 25 mL 1M sulfuric acid and 75 mL 1M sodium hydroxide
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
Why is naturally occurring iron non-magnetic except when it is exposed to an external magnetic field (a secondary magnetic force). How is it possible to create a permanent magnet (ferromagnet) from a naturally occurring sample of iron.
Suppose that the silver-silver chloride electrode in Figure 15.2 is replaced by a saturated calomel electrode. Calculate the cell voltage if [Fe2+]/[Fe3+] = 3.2 multiplied by 10-3.
Using information from the table of Standard Thermodynamic Data in the textbook, calculate the equilibrium constant, Keq, for the reaction given below at 298 K. C2H6O (g) ? C2H4 (g) + H2O (g) Keq =
What are the resonance structures for [H2CNO2]-? The problem asks for the major and minor contributors. The answer key says that there are two structures in which the only double bond switches between the two NO bonds
How do the two graphs compare if the frequency factor of the second reaction is higher than the frequency factor of the first reaction but the two reactions have the same activation energy?
Should you install a solar water heater? The average home has a 200 liter hot-water tank, which is effectively drained and replenished three times per day.
What is the theoretical yield (in mol) of carbon monoxide when 2.62 mol oxygen reacts with 2.08 mol of ethanol (CH3CH2OH) to produce carbon monoxide and water
In a protein determination, the color of dye changes to blue when it binds to protein, and the absorbance of light is measured. The data below were taken to calibrate the instrument
Assume no heat is lost to the surroundings. The normal boiling point of methane is -161.5 C. The specific heats of liquid and gaseous methane are 3.48 and 2.22 J/g.K, respectively. A)liquid B)gaseous C)solid
A steel railroad bridge uses a zinc sacrificial anode to limit the extent of oxidation of the steel. If a 5.1 kg anode is completely ozidized to Zn2+ over the course of 15.5 years, compute the average current flowing through the anode.
Acid strength decreases in the series HI > HSO4- > HF > HCN. Which of these anions is the weakest base?
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