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Question - Upon analysis, it is determined that a 0.591 g aspirin tablet contains 65.2% ASA by mass. A student dissolves the tablet in hot NaOH, allows the solution to cool, then dilutes to the line in a 250 mL volumetric flask using deionized water. The student then pipets exactly 3.10 mL of the solution into a 100 mL volumetric flask and dilutes to the line with FeCl3 solution. What is the ASA concentration of the final solution?
Please take care to reply the question as mark are evenly granted for each point
describe the basic steps involved in gravimetric analysis. how does this procedure help us determine the identity of a
A pair of enantiomers is named below. For each stereoisomers, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
in an industrial process nitrogen is heated to 400kelvin at a constant volume of 1m3.the gas enters a container at 300k and 100atm. the mass of the gas is 92.4kg. use the vander waals equation to determine the approximate pressure of gas
An automobile gasoline tank holds 43 of gasoline. When the gasoline burns, 151 of oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
A 4.98 g sample of aniline C6H5NH2, molar mass = 93.13 g/mol was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. Explain if the temperature rose from 29.5°C to 69.8°C, find out the value of H°comb for aniline.
When completely filled with water, the beaker and its contents weigh 297.65 g. Use d=100 g/mL as the density of water. What volume does the beaker hold?
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?
The solubility of pure nitrogen in water at 1 atm and 25 degress Celsius is 6.8E-4 M. Calculate the concentration of nitrogen in water under atmospheric conditions where the partial pressure of nitrogen is 0.78 atm.
Problem- A) What is the main difference between the isotherms above and d below the critical temperature Tc? Which equation can describe their behavior perfectly and which can describe them only approximately? Why?
The distraction cause an increase or decrease in the slpope
A solution of 53.6 g of glycerin in 133.7g of ethanol has a vapor pressure of 113 torr at 313K. Calculate the vapor pressure of pure ethanol assuming that glycerin is a non-volatile, non electrolyte solute in ethanol.
If 24mL of 6.6 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid? If 24mL of 6.6 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize..
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