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The vapor pressure of H2O is 42.175 mm Hg at 35 degree Celsius. The vapor pressure of ethyl alcohol (C2H5OH) is 100.5 mm Hg at 35oC. determine the vapor pressure of a solution prepared by dissolving 250 g of Ethanol in 375 g of water?
Which of the following molecular geometries could lead to linear molecule after removal of one atom?
M.r eric castilo purchased alot for PH 1300000 and sold them 2 years later for PH1900000. At what rate did his money earn?
which of the following is a neutralization reaction? 2no2 --> 2no-> + 02, h2o+so3-->h2so4, hno3 +koh-->h2o+kno3, 4na+o2 --> 2na2o, kcl+nano3--> kno3 + nacl
Some wastewater has a BOD5 of 150 mg/L at 20 degrees Centigrade. The reaction rate k at that temperature has been determined to be 0.23/day.
A helium-filled balloon has a volume of 2.75 L at 17 C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day. What is the outside temperature in K?
What is the Fe2+:Sn2+ concentration ratio in the following cell at 25C if the measured cell
the heat of combustion of c10h18 is -6286 kj/mol. the heat of combustion for c10h8 is -5157kj/mol.
if each reactant molecule in the above image represents 0.0157 mol and the reaction yields is 89%, how many grams of Si-containing product form?
calculate the initial reaction rate when [O3] & [NO] remain essentially constant at the values [O3]0= 7.48 x 10-6 M & [NO]0= 3.26 x 10-5M, owing to continuous production from separate sources.
Benzene is a trace component of gasloine. What is the mole ratio of benzene to n-octant in the vapor above a solution of 40.0% benzene and 60.0% n-octane by the mass
An aqueous solution is 5.80% methanol (CH3OH) by mass with d= 0.988 g/ml. What is the molarity of CH3OH in this solution
This solution was made up to the mark in a 200ml volumetric flask with water. It was found 10mls of this solution required an average titre of 6.50ml of 0.05M HCl for neutralisation.
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