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Tropylium bromide (7-bromo-1,3,5-cycloheptatriene) is insoluble in nonpolar solvents but dissolves readily in water. When an aqueous solution of tropylium bromide is treated with silver nitrate, a precipitate of AgBr forms immediately. The melting point of tropylium bromide is above 200 degree C, quite high for an organic compound. How can you account for these experimental observations?
Calculate the empirical formula for a chemical compound which gives the following analysis: 65.2 g scandium and 34.8 g oxygen.
The benzene-toluene system obeys Raoult's law because benzene and toluene molecules have similar shapes and electronic structures
Give the shape of each molecule in problem and describe whether each molecule is polar or non polar and tell whether each is soluble or insoluble in water
Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
The energy available is given in the question along with the percent efficiency. Use these values to determine the energy
If 60.0 g of H3PO4 is dissolved in enough water to form 175 mL of solution, what is the molarity (M) of the solution?
The osomotic pressure of this solution was 10.68 torr at 25 degrees C. What is the molecular mass of the protein?
MgNH4PO4 6H2O loses H20 stepwise as it is heated. Between 40c and 60c the monohydrate is formed and above 100c the anhydrous material is formed. What are the phosphorus percentages of the monohydrate and of the anhydrous material?
A gasous mixture of O2 and Kr has a density of 1.104 grams per liter at 435 torr and 300 K. What's the mole percent of O2 in the mixture?
if 0.55 g of a gas dissolves in 1.0 l of water at 20.0 kPa of pressure, how much will dissolve at 110.0 kPa of pressure?
What is the estimated quantity of energy released in the combustion of methanol?
How much heat is required to warm 211 g of ice from -45.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
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