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Exactly 5.02 grams of an unknown gas was sealed in a 3.0 L flask at 37.0oC and a pressure of 1.25 atm. Which one of the following is most likely to be the unknown
a. H2Ob. HBrc. HCNd. H2Se. C2H2
Consider 0.10 M solutions of the following substances. Rank the solutions in order of increasing pH where 1 is the solution with the lowest pH and 7 is the solution with the highest pH.
What symbol is used in a chemical equation to represent the following phrases? Select the symbol in blue and drag it into the appropriate bin
why must the Meltemp apparatus cool dwon to around 40 C between measurments? 5)why you expect ionic solids to have higher melting point than molecular solids?
synthesize benzocaine from benzene. please explain in detail in only three steps how to achieve this reaction. list NMR, MS and IR peaks for each step.
The mass of the ice cube is 11.2 g, and its initial temperature is -12.8 °C. The water resulting from the melted ice reaches the temperature of your skin
a metal weighing 50.0g absorbs 220.0 J of heat when its temperature increases by 120.0 degrees celsius. what is the specific heat of this metal?
In extracting an organic compound from an aqueous solutin, what is the practical advantage to having the organic solvent be more dense
What is the volume of nitrogen produced if the temperature of the car is 23.5 Celsius and atmospheric pressure is 748.2 mm Hg?
Starting from 1-methylcyclopentene and using other reagents and number of steps that you need, synthesize the following compounds.
magnesium hydroxide is 54.87% oxygen by mass. How many grams of oxygen are in 175g of the compound ?
suppose you want to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9g of pure AgNO3.
Based on this equation, what is the value of the Rydberg constant (R) in m^-1? (5 significant figures)
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