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The pressure in the cylinder is 15.5Mpa and interneal volume is 46.9L. Find the moles of helium gas in the cylinder.
In the addition of HBr to isobutylene (shown below) there are two possible products.What is Markovnikov"s Rule and upon what is it based?
Depict the hydrogen bonding three water molecules in a drawing
Calculate the mass of urea that should be dissolved in 201 g of water at 35°C to produce a solution with a vapor pressure of 37.1 mmHg.
Kc = 3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M, calculate the equilibrium concentration of the CO(g) at this temperature
Assuming that the solubility of radon in water with 1 atm pressure of the gas over the water at 30°C is 7.27 10-3 M, what is the Henry's law constant for radon in water at this temperature?
In the experiment, ligroin may be used as a solvent for the separation of the product from biphenyl.
What is the geometry of a carbon atom involved in a triple bond?
Since methylene chloride and water to not mix, by wetting a piece of filter paper with water addition of both layers to the filter funnel results in the aqueous layer passing through the paper and the
A solution is prepared by dissolving 297 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
What is the minimum volume of 6.0 M HCl(aq) needed to completely dissolve 3.20 g of aluminum in this reaction?
What is the empirical formula of a sample of iron-containing compound that is 22% iron, 50.2 oxygen and 27.8 chlorine by mass?
What is atmospheric pressure in atmospheres in Denver for heat of fusion=40.6kj/mol at 95 degee celsius
Liquid water and nitrogen monoxide gas are produced from the reaction of 22.7 grams of ammonia gas with 53 grams of oxygen gas. 36.0 grams of water were measured at the end of the reaction. What mas
For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50 kJ/mol. What is Ea for the reverse reaction in kJ/mol?
Using equations, explain how a buffer functions. Buffers consist of a solution of a weak acid, HA, and its conjugate base, A, at high concentrations.
Manganese makes up 1.3 x 10-4 percent by mass of the elements found in a normal healthy body. How many grams of manganese would be found in the body of a person weighing 183 pounds?
What is the velocity of a first-order reaction when the reactant concentration is 6 x 10-2 M and the rate constant is 8 x 103 sec-1?
69.7 grams of a solute with a molecular mass of 2790 grams are dissolved in enough water to make 1.00 dm(3) of solution at 20 degrees C. What is the osmotic pressure of the solution?
Suppose that at a certain instant the volume is 200 ccs, the pressure is 80 kPa, and the pressure is increasing at a rate of 28 kPa/min. At what rate is the volume decreasing at this instant?
Use the Nutritional information on the food bag to calculate the calories per gram? How does this information compare to your information? How do you explain the discrepancy? How could you do the expe
The rate constant at 25°C is 2.4 10-21 L/mol·s. If 0.0200 mol of HI(g) is placed in a 1.0 L container, how long will it take for the concentration of HI to reach 0.0085?
A 0.692 g sample of glucose, C6H12O6, is burned in a constant volume, bomb calorimeter. The temperature change is measured at 1.80 degrees C. The calorimeter contains 1.05 kg and the "dry" calorimet
For the reaction CH4+202 yields co2+2H2o, how many moles of carbon dioxide are produced from the combustion of 100 grams of methane?
The bottom of a box has a surface area of 25.0 cm2. The mass of the box is 34.0 kilograms. Acceleration due to gravity at sea level is 9.80 m/s2. What pressure is exerted by the box where it rests?