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The neutralization of 50.0 mL of 1.00 M hydrochloric acid with 50.0 mL of 1.00 M sodium hydroxide causes a 6.7°C increase in temperature. Predict how the following changes to the experimental protocol would affect the value of the change in temperature.
The temperature change depends on the moles of water produced (moles of reaction) and the mass of the solution. Assume that the density of each solution is 1.0 g/mL.
a. using 100.0 mL of 1.00 M hydrochloric acid and 100.0 mL of 1.00 M sodium hydroxide
b. using 50.0 mL of 2.00 M hydrochloric acid and 50.0 mL of 2.00 M sodium hydroxide
c. using 25.0 mL of 1.00 M hydrochloric acid and 75.0 mL of 1.00 M sodium hydroxide
d. using 25.0 mL of 1.00 M sulfuric acid and 75.0 mL of 1.00 M sodium hydroxide (Be careful. Think about the value of n!)
h2g n2g --gt 2nh3gwhat volume of ammonia can be produced from 2.0l of nitrogen gas and 3.0l of hydrogen gas? assume
A gas measures 180. ml. at 870C and 800. mm Hg. Find its volume at standard temperature and 800 mm Hg of pressure.
Draw all of the eclipsed and staggered conformations for the c3-c4 bond in hexane starting with the conformation that has the lowest energy.
A+2B 2C Kc=2.93 2C D Kc=0.288 calculate the value of the equilibrium constant for the reaction. D A+2B
Would there be any moisture diffusion in this system? In which direction? Using your sorption isotherm estimate the final moisture contents and water activities of each component?
What is the length of the trapped air column in the short arm when the long arm is filled with mercury. Neglect the curvature of the closed end.
A hydrogen atom in its ground state absorbs a UV photon at a wavelength of 93.8 nm. It then re-emits a photon as it relaxes to the n=2 energy level.
The sample is titrated to the phenolphthalein endpoint with 15.17 ml of a sodium hydroxide solution. What is the molar concentration of the NaOH solution
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
Pure solid NaH2PO4 is dissolved in distilled water, making 100.0ml of solution. 10 ml of this solution is diluted to 100.00 ml to prepare the orignal phosphare standard solution
explain what a compound is, and give the names and formulas for 10 compounds containing your your chosen element. When 41.8 mL of 0.4731 M strontium hydroxide reacts with 26.1 mL of 0.2596 M cobalt(III) sulfate, two precipitates can form. Assume vo..
Elevation Pressure 0 ft 760 mmHg 1000ft 740.2 mmHg 2000ft 720.4 mmHg What is the boiling point of water at an elevation of 6.00×10^3 ft
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