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An aqueous solution containing 4.95 g of an optically pure compound was diluted to 300 ml with water and placed in a polarimeter tube 20 cm long. The measured rotation was -3.01 degrees at 25 degrees Celsius. Calculate the specific rotation of the compound.
What is the pH of a 0.430 M ammonia solution. What is the percent ionization of ammonia at this concentration
Diagnostic reactions are those used in medicine to figure out what may be causing a problem. Can you go into detail concerning one such test you or someone you know has undergone? Share one balanced chemical equation related to this, and be sure t..
A 0.08353 g sample of gas occupies 10.0-mL at 295.0 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
curved arrows to symbolize the flow of electrons, white the stepwise mechanism for the acid-catalyzed esterification of p-aminobenzoic acid to ethyl p-aminobenzoate
The combustion of 58.0 g of butane (C4H10) produces 158g of CO2. What is the percent yield of the reaction
A person ate 0.451 pound of cheese (an energy intake of 3610 kJ). Suppose that none of the energy was stored in his body. What mass (in grams) of water would he need to perspire in order to maintain his original temperature? (It takes 44.0 kJ to v..
The catalyzed reaction took 2 minutes. The non-catalyzed reaction took 30. Solutions in each consisted of 5 mL phosphate citrate buffer
Determining the free ions of calcium on a similar sample of blood. recommend if the sample requires pretreatment or if it can be calculated directly In each case.
Draw the first mechanistic step( one intermolecular arrow and any subsequent intramolecular arrows needed to finish the mechanistic step) between caffeine and hydrochloric acid.
What is the concentration of P retained in the soil (in mg P/kg)? What is the concentration of PO4 retained by the soil (in mg PO4/kg)?
How many moles of carbon, hydrogen, & oxygen are present in a 100g sample of ascorbic acid? Ascorbic acid (vitamin C) contains 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen by mass. Assume a 100 g sample of ascorbic acid.
prepared by dissolving 33.2 g of the compound in sufficient water to form 250 mL of solution. The solution has an osmotic pressure of 1.2 atm at 25 °C. What is the molar mass (g/mole) of the compound?
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