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When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how are the electrons distributed in the resulting molecular orbitals
0.250 g of a binary unknown acid, HX, requires 31.96 mL of a 0.09668M NaOH solution when titrated. What is the identity of the unknown acid.
Calculate delta H^degree (in kilojoules per mole) for benzene,C6H6 , from the following data: 2C6H6(l)+15O2(g)---->12CO2(g)+6H2O(l), delta H^degree= -6534 kJ
What mass of water (in g) would need to evaporate from your skin in order to dissipate 0.8 x 10 5 J of heat from your body?
A) Draw the major organic product obtained when 1,2-dimethylcyclohexane-1,2-diol encounters periodic acid.
Acetylene gas (ethyne; HC?CH) burns in an oxyacetylene torch to produce carbon dioxide and water vapor, and the heat needed to weld metals. The heat of reaction for the combustion of acetylene is -1259 kJ/mol. (a) Calculate the C?C bond energy, and..
Treatment of 1.385 g of an unknown metal M with an excess of aqueous HCl evolved a gas that was found to have a volume of 382.6 mL at 20.0 degrees C and 755 mmHg pressure
When the following chemical equation is correctly balanced, what is the sum of the smallest set of integer coefficients
Calculate the pH of the solute in an aqueous solution of 0.372 M (CH3)3N(aq) if the Kb is 6.5 Ã- 10âˆ'5.
A 50ml sample of a white dinner wine required 21.48 ml of .03776 M NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid (150.09g/mol) per 100 ml.
How many milliliters of 0.105 M HCl are needed to titrate each of the following solutions to the equivalence point:-- 45.0 mL of 0.0950 M NaOH
Using the orbital diagram outline steps used to describe the formation of a set of sp2 hybridized orbital for a carbon atom
An oxygen bottle containing a fixed volume oxygen gas has a pressure of 800.00 mm hg and a temperature of 295 k. If the bottle is heated to 328k what will the pressure of oxygen gas be within the bottle and which law will you use to solve it?
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