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Ethane gas, C2H6, burns in oxygen to form carbon dioxide gas and gaseous water. At constant 1.60 kJ of heat is evolved when 79.442 grams of ethane is burned. Write the thermochemical equation for this reaction, including labels for the all states of all reactions and products.
Titration will require more moles of base than acid to reach the equivalence point. E. titration will require more moles of acid than base to reach the equivalence point.
The boiling point of an aqueous solution is 101.31 °C. What is the freezing point. Constants can be found here.
write the two resonance hybrids for the carbocation that would be formed by protonation at C-1 of 2-methyl-1,3-pentadiene. Without doing a calculation
Draw the LUMO Huckel MO for the cation 1, 3, 5-heptatriene (carbocation is carbon 7). Also, please state the number of pi electrons in this conjugate system
If a sample of 0.188 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
According to the activity series, which of these metals will react with most acids to produce H2 gas?
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid
An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases
A fixed quantity of gas at 21^circ C exhibits a pressure of 725 torr and occupies a volume of 4.32 L.
Computational chemistry-----What two predominant effects govern most chemical reactions and properties. What are the two major types of computational approaches used to model chemicals
1.20g sample of water is injected into an evacuated 3.00l flask at 45.0c. what percentage of the water will be vapor
a steel cylinder holds 1.60 g of ethanol c2h5oh. what is the pressure of the ethanol vapor if the cylinder has a volume
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