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Question- How much heat is evolved when 100.0 g of liquid water is formed from the combustion of gaseous hydrogen and gaseous oxygen? DHof (H2O liq) = -285.8 kJ
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A current of 1000. A flows for exactly one hour through a cell in which the subsequent reaction occurs at one of the electrodes.
How much heat is needed to melt 22.4g of ice at zero degrees celcius to form liquid water at zero degress celcius?
For supercritical carbon dioxide, predict the effect that the following changes will have on the effect that the following changes will have on the elution time in an SFC experiment.
Why is gravity filtration rather than suction filtration used to remove suspended impurities and charcoal from a hot solution. Why is a fluted filter paper used in gravity filtration
A voltaic cell is built, using the anode reaction Cu (s)=Cu^+2(aq)+2e^- and the cathode reaction Fe^+3(aq)+1e^-=Fe^+2(aq). If [Cu+2]=.50M [Fe^+2]=.10 M and [Fe^+3]=.20 M, what will the Ecell be
Halogens are added to alkenes with anti-stereochemistry through the halonium ion mechanism. However, when 1 phenylcyclohexe reacts with chlorine in CCl4, a mixture of cis and trans isomers of products is obtained. Outline a mechanism to explain th..
a solution of i2 was standardized with ascorbic acid. using a 0.1137-g sample of pure ascorbic acid 26.75 ml of i2 were
explain why the chemical formulas AlCl3, PCl3 and CoCl3 are so similar, yet their names are so different.
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
What is the cell potential when the solutions are altered, so [Ag+] = 1.25 M and [Cu+]= 0.25M
Small helium-neon lasers emit 4.62 mJ/s of light at 634 nm. How many photons does such a laser emit in one minute?
In the presence of Sulfuric Acid, Benzilic Acid reacts with acetone to form a compound with the molecular formula C17H16O3. Propose a structure for this product and write a balanced equation for the reaction
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