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In the determination of the specific heat of a metal, why is it desirable to use the minimum volume of water that will allow immersion of the metal sample?
How much antifreeze would you add to a 2.0 gal water tank in order to obtain a solution that freezes
If it takes three "breaths" to blow up a balloon to 1.2 \rm L, and each breath supplies the balloon with 0.060 moles of exhaled air, how many moles of air are in a 3.0 \rm L balloon
Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% galena by mass.
determine calorimeter constant b) determine reaction enthalpy for the Zn / HCl reaction c) if ?fHo (ZnCl2 aq) is -482.2 kJ mol-1 and ?fHo (HCl aq) is -165.2 kJ mol-1, what is you percent error
What is the maximum energy that can be extracted as (a) heat and (b)non-expansion work when 1.0 kg of natural gas is burned under standard conditions at 25 deg celsius. Take the reaction to be CH4(g) + 2 O2(g) ----> CO2(g) + 2 H2O(l).
Write an equation for the ionization of each of the following amines in water. Consider if you need a double or single arrow ethylamine
How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?
Consider the titration of a 24.0 ml sample of 0.120 M HC2H3O2 with 0.105 M NaOH. Determine the initial pH.
A solution is known to contain Bi3+ ion or Cd2+ ion or both. Describe the test(s) that could be used to separate and identify these ions. Describe the results you would expect to see for each ion, if that ion were present.
How do you determine the intermolecular forces in molecules based off of the polarity of a given molecule
Calculate the value of ?Grxn in a biological cell in which [ATP] = 5.0 mM, [ADP] = 0.40 mM, and [HPO42-] = 5.0 mM. change in G rxn=________kJ/mol
Write a balanced chemical reaction for the double replacement between aqueous aluminum nitrate and sodium phosphate. which product will be the precipitate
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