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A solution is found to be 4.33% Ethanol by mass CH3CH2OH. How many grams of ethanol are in 1 liter of this solution? What is the molarity of this solution?
When a piece of gold that weighs 182 grams is added to 250 g of water at 25 degrees C, the resulting temperature of the mixture is 27.5 degrees C. If the specific heat of gold is 0.129 J/g degrees C. Calculate the heat that the water absorbed from ..
What is the pH at the equivalence point in the titration of 0.250M HX (Ka=6.2x10^-8) with 0.250M KOH
The reaction of alicylic acid with a catalytic amount of sulfuric acid and excess methanol is an example of a fischer esterification. Why was the reaction heated to reflux instead of leaving it at room temp?
A gas follows the equation of state PV = nRT(1+aP) where 'a' is a constant. For this gas, show that a = 1/T and K = 1/(P(1+aP) and verify that (dP/dT)v = a/K
A trisubstituted cyclohexane compound is given below in its chair conformation. Draw the corresponding planar (overhead) representation, using wedge-and-dash bonds to indicate the substituent positions
Small air bubbles in the salt bridge may not be a problem. How can the presence of air bubbles in the salt bridge alter the effectiveness of this salt bridge
Two charged dust particles exert a force of 4.7 10-2 N on each other. What will be the force if they are moved so they are only one fifth as far apart?
A coal sample contains 3.28% sulfur by mass, which when burnt to provide electrical power, is converted to SO2. What is the volume of SO2, measured at 23 degrees C and 738 torr, when 2.7x10 ^6 lbs of this coal are combusted
A two tablet sample of a vitamin/mineral supplement weighting 6.08 g was wet ashed to eliminate organic mattter, complexed with a highly colored ligan and then diluted to 1.00L volume. two 10.00 ml aliquots were then analyzed. calculate the averag..
A mixture of neon and oxygen gases at a total pressure 975 mm Hg contains neon at a partial pressure of 325 mm Hg. If the gas mixture contains 3.75 grams of neon,
What is the molar mass of the following: a) O2, b) KH2PO4, c) Fe(ClO4)3, d) C4H8O4, e)Ga2(CO3)3, f) KBrO4. Please use significant figures.
Identify these solutions based only on color. What aspect of coordination chemistry is used in your decision?
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