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A balloon is filled with pure oxygen gas for a demonstration in a Chemistry 20 classroom. What is the predicted volume for a balloon containing 2.50 g of oxygen gas at SATP?
50mL of 0.1M aqueous solution of some organic compound was brought in contact with 7mL of octanol at 20oC. After equilibration GC analysis of octanol phase shows component concentration of 0.4M. Explain what is the portioning coefficient of this c..
Problem- Calculate the collision frequency, z, and the collision density, Z, in carbon monoxide, R = 180pm at 298K and 100kPa. What is the percentage increase when the temperature is raised by 10K at a constant volume?
How can I determine with DRAWINGS or DIAGRAMS the composition of a phase, and the amount of the phases in a mixed phase region?
Problem- Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 6.40moles of magnesium perchlorate, Mg(ClO 4 ) 2
A fuel gas containing 86 % methane, 8 % ethane, and 6 % propane by volume flows to a furnace at a rate of 1450 m3 /h at 15 degrees C and 150 kPa (gauge), where it is burned with 8 % excess air. Calculate the required flow rate of air in SCMH
This is because (less/ more) energy is released when ions bond to water molecules than is used to break the bonds in lithium chloride
When 27 mL of a 405 mL stock solution containing 2.3 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution?
The heat capacity of water is 4.18 J/g-deg. You may assume that resulting solution of potassium hydroxide has the same heat capacity as that of pure water. The molecular weight of K is 39.1 g/mol
For 100 g mol of a gas mixture of 75 mol % CH4 and 25% H2, calculate the total heat of combustion of the mixture at 298 K and 101.32 kPa, assuming that combustion is complete.
a sample of hfrac12o with a mass of 46.0 grams has a temperature of -58.0 agravec. how many joules of energy are
the R isomer of limonene has an optical rotation, alpha,of +123 degrees the S isomer has an optical rotation, alpha, of -123 degrees. IF the observed rotation of a mixture of the R and S isomer resulted in a alpha of 109 degrees
The osmotic pressure of a liquid at 320 K is 145 kPa. Compute the freezing point of the solution. Explain how to solve without knowing what the substance is or being given values for the freezing point constant (kf), density or molar mass.
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