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Describe the physical method or techniques of isolating inert gases from liquid air
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
what is the density in gml of a sphere with a diameter of 4cm and a mass of 1.35 grams? what is the percent error if
a system at equilibrium or striving to reach equilibrium responds in a way that best ac- commodates or reduces any
A criticism of this prediction is that the melting of icebergs does not increase ocean levels any more than the melting of ice in a glass of water increases the level of liquid in the glass. Is this a valid criticism
(a) calculate the percent transmittance of this solution,(b) the percent transmittance in 2.50 cm cell (c) the molar absorptivity of the complex
Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an object traveling
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees C before the solution becomes saturated
The melting points of a series of 18-carbon fatty acids are: stearic acid, 69.6 C; oleic acid, 13.4 C; linoleic acid, -5 C; and linolenic acid, -11 C. What structural aspect of these 18-carbon fatty acids can be correlated with the melting point
Explain why, during the recrystallization of p-dibromobenzene, the turbity of the hot solution was used as an indicator for the ratio of ethanol to water used.
If one slice of chocolate cake contains 35 g od carbohydrats, 15g of fat and 5g of protein. Compute the kilocalories that each slice of cake contains. Classify all the food groups that form a part of a balanced diet along with their sources.
An atomic emission spectrum of hydrogen shows the following three wavelengths: 121.5 {\rm nm}, 102.6 {\rm nm}, and 97.23 {\rm nm}. Assign these wavelengths to transitions in the hydrogen atom
pure acetic acid known as glacial acetic acid is a liquid with a density of 1.049 gmol at 25 c. calculate the molarity
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