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Problem- Aluminum has a density of 2.70 g per cm3. If a sheet of aluminum foil measuring 20.5 cm in length and 15.2 cm in width has a mass of 1.693 g, what is the thickness of the foil in mm?
I need dexterous help to working out the above problem
A hydrochloric acid solution is standardized using 0.500 g of sodium carbonate, Na2CO3.Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein
When exactly 0.500 mL of 0.0287 M Cu(N03)2 was added the signal increased to 37.9 units. Calculate the molar concentration of Cu^2. assuming that the signal was directly proportional to the analyte concentration.
What max of water can be heated from 15 degrees C to 100 by burning this piece of cool
Find Delta Erxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in separate experiment, is 5.11 kJ/ C
Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution.
What is the dew point of a mixture of air and water vapor at 60°C and 1 atm in which the mole fraction of the water is 12%? The total pressure on the mixture is constant.
Problem- Given that the average concentration of NaCl in the body is 0.15 M, what is the osmotic pressure of this solution at 20 °C? A) 3.0 atm B) 0.25 atm C) 0.50 atm D) 7.2 atm E) 1.0 atm
Compare a solid and a gas with respect to the arrangement of their molecules. Use this comparison to explain the effect of pressure exerted by a solid and by a gas.
Determine the structure of compound U. Be sure to include a concise discussion of the reasoning. Construct tables summarizing the IR and 1H NMR data, and assign the peaks in the IR and NMR spectra to the appropriate structural elements in U. Expla..
an ideal gas has a pressure of 2.69 atm, and a volume of 91.59 L, what is the temperature of the sample in degrees Celsius?
Determine the number of bonding electrons and the number non-bonding electrons
A 0.0623g sample of cobalt sulfate was dissolved in dilute HCl and treated with 10% BaCl2 solution. The BaSO4 precipitate weighed 0.1075g. Determine the formula of this sulfate of cobalt.
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