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Morphine is 71.56% C, 6.71% H, 4.91% N, and 16.82% O as well as its molecular weight is 285 g/mol. Explain what is its molecular formula?
Solutions of sulfuric acid and lead acetate react to form solid lead sulfate and a solution of acetic acid.5.70 of sulfuric acid and 5.70 of lead acetate are mixed.
Calculate the equilibrium constant K for the isomerization of glucose-1-phosphate to fructose-6-phosphate at 298K .
Develop a stoichiometry problem that includes finding a mass of reactant/product from another mass of reactant/product. This can be a chemistry problem or use an everyday problem.
A 2kg iron bar (c of iron is 440 J.kg .K) is heated to 80 Celsius. The bar is dipped in 5kg of water at 20 Celsius in a heat insulated container. What will be the equilibrium temperature inside the container?
a container of an ideal gas originally at 30 degrees c is heated to a temperature of 317 c. by what factor does the
If 1.020g of KHC8H4O4 (204.23g/mol) is completely neutralized with 0.200 M KOH, what volume of potassium hydroxide is required. KHC8H4O4(aq) + KOH(aq) -(arrow to the right) K2C8H4O4(aq) + 2 H2O(1)
The solution was made up to a volume of 350.0 ml with water; a pure silver electrode was immersed in the solution and the potential difference between this electrode and a standard hydrogen electrode
Consider a 2430-lb automobile clocked by law-enforcement radar at a speed of 85.5 mph (miles/hour). If the position of the car is known to within 5.0 feet at the time of the measurement, what is the uncertainty in the velocity of the car?
Calculate the amount of energy in kilojoules needed to change 135 of water ice at -10 degrees Celsius to steam at 125 degrees Celsius.
Give equations for the reaction of salicylic acid with the following: a) acetyl chloride/pyridine b) methanol/HCl/heat c) sodium bicarbonate, room temperature
From the same container under the same conditions--same temperature and initial pressure, it takes 40 s for 1.00 L of O2 gas to effuse. Calculate the molar mass (in grams/mol) of the unknown gas.
calcuate the wavelength (in nanometers) of an electron weighing 9.10939x10^-28g moving at 3.90x10^6 m/s.
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