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Suppose you have a cylindrical glass tube with a thin capillary opening, and you wish to determine the diameterof the capillary. You can do this experimentally by weighing a piece of the tubing before and after filling aportion of the capillary with mercury. Using the following information, calculate the diameter of the capillary.Mass of tube before adding mercury = 3.263 g
Mass of tube after adding mercury = 3.416 g
Length of capillary filled with mercury = 16.75 mm
Density of mercury = 13.546 g/cm3
Volume of cylindrical capillary filled with mercury =(p)(radius)2(length)
Question- A 4.0 g sample of polystyrene was dissolved in enough toluene to form 100 mL of solution. The osmotic pressure of this solution was found to be 0.100 atm at 25 °C. Calculate the molar mass of the polystyrene sample
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 HCN solution.
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
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the oxidation of copper 1 oxide cu2o s to copper 2 oxide cuo s is an exothermic process2cu2o s o2 g -gt 4cuo s deltah
(a) calculate the percent transmittance of this solution,(b) the percent transmittance in 2.50 cm cell (c) the molar absorptivity of the complex
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You weigh 10 of the rings as well as find that they have combined mass of 7.38g; you then place them Ina graduated cylinder 2.5 cm in diameter as well as observe that the water level rises by 8.45 mm. Are the rings pure silver
suppose 0.380 kg of water initially at 45.0degc is poured into a 0.300 kg glass beaker having a temperature of
What is the hydronium ion concentration of a 0.500 M acetic acid solution with Ka = 1.8 x 10-5? The equation for the dissociation of acetic acid is: CH3CO2H(aq) + H2O(l) H3O+(aq) + CH3CO2-(aq)
A cell based on the reaction below has a standard potential of +0.42 V at 25°C. If all of the species are at standard conditions except [H+], at what pH will the cell have a potential of zero
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