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Question- A solution of sodium hydroxide was neutralized by sulfuric acid. The volume of sodium hydroxide solution used was 940.0 mL, and the concentration was 0.225 M. Calculate the moles of sulfuric acid that were neutralized (assuming that the reaction goes to completion). Provide your answer to three significant figures.
2NaOH (aq) + H2SO4 (aq) --> Na2SO4 (aq) + 2H2O (l)
A typical serving of cheddar cheese contains 176 mg of sodium. How many moles of sodium are contained in this amount of cheddar cheese
solid sodium hydroxide is dissolved in 127.3 g of water at 22.0 C in a perfect calorimeter. Assuming the heat capactity of the solution is the same as water, what is the final temperature of the solution?
the reaction: 2C2H6(g) + 7O2(g)-----> 4CO2(g) + 6H2O(g) is exothermic. predict under what conditions of temperature (low, high, all or none) the reaction is expected to be spontaneous
Choose the correct answer of the following, explain why it is true, and explain why the other choices are untrue: (A) high pE is associated with species such as CH4, NH4+
A combustion devise was used to determine the empirical formula for a compound that only contains C, H, and O. A 0.6349 g sample of the unknown produced
question what equipment will i need and what measurements do i need to make in order to find enthalpy entropy and gibbs
It takes 254kj/mol to eject electron for a certain metal surface. What is the longest wavelength of light that can be used to eject electrons from the surface of this metal via the photoelectric effect.
Problem- A commercial aqueous solution of ammonia is 28% NH3 by mass and has a density of 0.900 g mL-1. Calculate the molarity of the solution.
A person breathes 2.6 L of air at -110 C into her lungs, where it is warmed to 370C. What is its new volume?
The next question was this: "What is the PH at it's equivalence point? AS part of your answer, define equivalence point. What does it mean for a substance to be at its equivalence point?"
The convention of arbitrarily assigning a zero enthalpy value to all the most stable elements in the standards state and (usually) 298 K is a convenient way of dealing with the enthalpy changes of chemical processes.
Define the term equilibrium vapor pressure.
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