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When active metals such as sodium are exposed to air, they quickly form a coating of metal oxide. The balanced equation for the reaction of sodium metal with oxygen gas is Na(s) + O2(g) ? Na2O(s)
Formic acid, HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas
For the reaction 2CH4(g) +3Cl2(g) -> 2CHCl3(l) + 3H2(g), the standard enthaly of change of reaction = -118.6KJ. The standard enthalpy of change of reaction
A copper storage tank containing dilute H2SO4 at pH 0.1 is blanketed with hydrogen at 1 atm. Calculate the maximum Cu(2+) contamination os the acid in moles Cu(2+) per liter. What is the corresponding contamination if the hydrogen partial pressure..
describe in detail the internal changes that occur within dental porcelain when firing porcelain jacket crowns and
Enough of a monproctic acid is dissolve in water to produce a 0.0147 M solution. The pH of the resulting solution is 2.31. Calculate the Ka for the acid.
Draw an energy-level diagram for the valence molecular orbitals of CO. Include the relevant atomic orbitals in your diagram. Clearly label each molecular orbitals and fill in the appropriate number of electrons
The equation for the reaction is 2 NH3 + 3 O2 + 2 CH4 ----> 2 HCN + 6 H2O, What is the percent yield of HCN?
the density of water is 1.0g/ml at room temperature. briefly explain how the density of an aqueous solution at room temperature can be significantly less than 1.0g/ml?
1. which pair of esters is most likely to provide a useful claisen synthesis.2. which is the major product formed in
Ethyl acetate can be prepared from ethanol as the only organic starting material.
What is the maximum number of electrons that can populate a given orbital there (b) Write the electronic configuration of the element with atomic number 8 in the periodic table. Formatting: superscript numbers where appropriate but omit parenthese..
The slope of the Gran Plot for the titration of KHP with NaOH was found to be -1E-05. Use this to determine ka2. Other values that may be of importance: concentration was measured
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