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You take 3.1789 g of a substance and place it into 100.0 g of benzene. The boiling point of this solution is found to be 80.5464 C. What is the approximate molar mass of the substance? Bp of CCl4 is 80.1 C and the Kb is 2.53 C/m.
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. H3PO3 is a stronger acid than H3PO4 because it has fewer ox..
traditionally foreign direct investments fdi has followed foreign trade since foreign trade is typically less costly
If the sign contains neon at a pressure of 1.78 at 38, how many grams of neon are in the sign
Compare HASAW Act with Occupational health and safety regulations of Sultanate of Oman. and give an outline of what would be needed to set up a suitable safety management system to control the hazards in a chemical process industry
To determine the organic material in a dried lake bed, you have determined the percent carbon by mass at two different locations. In order to compare the means of the two different locations, you need to determine whether the standard deviations o..
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture
A steel is heated until 85% austenite, with a carbon content of 1.05%, forms. Estimate the temperature and the overall carbon content of the steel.
A hydrogen atom in its ground state absorbs a UV photon at a wavelength of 93.8 nm. It then re-emits a photon as it relaxes to the n=2 energy level.
Which is a correct IUPAC name for CH3OCH2CH2OCH3. A) 1,4-dioxane B) ethylene glycol dimethyl ether C) 1,4-dioxapentalene D) 1,2-dimethoxyethane E) 1,2-diethoxymethane
Calculate the number of theoretical plates N in the column of length L in 17 cycles. The observed resolution is 1.51.Now, calculate the plate height in the column in ?m.Estimate the resolution in 2 cycles
Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 5.36×10-4
Elemental manganese and manganese dioxide, MnO2, in a state of high purity can be prepared by electrolyzing aqueous solution of Mn 2+. At which electrode (anode or cathode) does the Mn and MnO2 appear
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