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At 20 0C and 35 bar pressure, ethane exists as both a liquid and a gas. Use the Redlich-Kwong equation to determine the molar density of the liquid and the gas under these conditions. (Redlich-Kwong constants: a=98.831 , b=0.045153)
how much heat is produced in burning 7 mol of rmc2 rmh2 under standard conditions if both reactants and products are
The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 × 102 g of sucrose (C12H22O11, molar mass = 342 g/mol) and 3.50 × 102 g water? 1. 0.51 mmHg 2. 16.0 mmHg 3. 17.0 mmHg 4. 18.0 ..
The blade of an ice skate is ground to a knife edge on each side of the skate. If the width of the knife edge is 0.001in., and the length of the skate in contact with the ice is 3 in., calculate the pressure exerted on the ice by a 150lb man.
calculate the wavelength of the photon emitted when an electron drops from 4d obital to a 2p orbital in a hydrogen atom
At a certain temperature, the root mean square speed of CH4 molecules is 1610 km/h. what is the root mean square speed of CO2 molecules at the same temperature ?
When the solvent is removed from a sample solution, 3.0 mole of substance B, 7.5 moles of substance C, and 15.0 moles of substance A are left in the solution. What is the mole fraction of substance A in this new solution?
Calculate the change in the mass of copper at the anode or cathode if the charge calculated above is passed through the cell described. Enter your answer as a positive quantity in mg. Mass change at the electrode = ? mg
explain to anyone that wants to listen to you that NaCl is an extended structure formed from ionic bonds that doesn't have individual molecules
A 0.7120g specimen of iron ore was brought into solution and passed through a Jones reductor. titration of the Fe(II) produced required 39.21 mL of 0.02086 M KMnO4. express the results of this analysis in terms of (a) percent Fe and (b) percent Fe..
A certain lead-sulfur compound contains 86.59% Pb by mass and the remainder is sulfur. What is the empirical formula of the compound
A bubble rises from the bottom of a lake of depth 90.0 m, where the temperature is 3° C. The water temperature at the surface is 18° C. If the bubble's initial diameter is 1.00 mm, what is its diameter when it reaches the surface
Complete and Balance including physical states and solubility rules. MgCL2 (aq) + K3PO4 (aq)
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