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Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these condition?
A 31.43 ml volume of .108M NaOH is require to reach the phenolphthalein endpoint in the titration of a 4.441g sample of vinegar. Calcute the percent acetic acid in the vinegar.
explain why it is dangerous to mix solutions in a test tube by placing a finger
In the Macy's Thanksgiving Day parade, 2000, there was a new float, the Cheerios' bee, and Buzz bee. The jar of honey it was holding contained 36,763 L of helium.
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 22.0 grams, what was the approximate mass of the methane in the original mixture?
Using your knowledge of hydroboration/oxidation mechanism, predict major and minor products
when aluminum is heated in oxygen, aluminum oxide is formed. What weight of the oxide can be obtained from 25.0g of the metal.
What is a likely mechanism for the reaction below: (2Z)-7-methylocta-2,6-dienal using heat and a hydroxyl to form 6-methylhept
In a gas mixture, the partial pressures are nitrogen 430 , oxygen 115 , and helium 235 . What is the total pressure ( ) exerted by the gas mixture?
You have a 10.40-g mixture of table sugar (C 12 H 22 O 11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point is found to be-2.24°C. Calculate the percent by mass of sugar in the original mixture.
In a study of the effect of temperature on halogen decomposition. 0.50 mol of I2 was heated in a 2.5 L vessel and the following reaction occurred. I2 (g)--> 2I (g)
How do you estimate energy change using bond reactions in a complete methane combustion
Chlorine gas can be produced commercially by passing an electric current through a con- centrated solution of sodium chloride (brine).
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