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given that the normal melting point of cyclohexane is 6.47 degree C and the enthalpy of fusion at this temperature is 2.68 kJ/mol. State any assumptions or approximations made.
You are jumping down from a small ledge 0.7 m high onto a concrete floor. what is the force exerted onto your feet during the landing
An ice skater slides at a speed of 25 km/h on a level ice track. At this point she allows herself to coast to a complete stop
Find the activity of water in this sucrose solution, given that the vapor pressure of pure water at 25 degree C is 3.167 kPa. (b) If a 2.00 mol/kg aqueous sucrose solution has a vapor pressure of 3.
Three 1.5-V batteries, with internal resistances of 0.01ohms , 0.1ohms , and 1ohms , what is the voltage across each resistor
Calculate the density of a solution of benzene and toluene mixed at 1:1 weight ratio at 20 degree C and 1 atm, given that ?(benzene) = 0.8790 g/cm^3 and ?(toluene) = 0.8668 g/cm^3 at 20 degree C and
A mixture of KCl and KClO3 weighing 1.55 grams was heated the dry O2 generated occupied 1.4x102 ml at STP. What percent of the original mixture was KClO3 which decomposes as follows
A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, What is the distance between the charges
A mixture is prepared from 15.0 l of ammonia and 15.0 l chlorine measured at the same conditions these compounds react according to the following equation 2NH3+3Cl2---> N2+6HCl When the reaction
In a certain region, the earth's magnetic field has a magnitude of 4.7 × 10-5 T and is directed north at an angle of 69° below the horizontal, Determine the bullet's electric charge
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the
Calculate the volume of 6 M NaOH required to react completely with the amount of methyl salicylate you used. How much of the 6 M NaOH that you used was in excess of the theoretical amount?
Why is this only an approximation? Under what conditions can the selectivityremain temperature-independent?
Equilibrium system given: Fe3+(aq) + SCN- (aq) <- -> FeSCN2+(aq) Equilibrium system Net ionic equation? What are the net ionic equations for the following
a 30kg child wants to use a 20kg board that is 6.0m long as a seesaw. since all her friends are busy, How far from her will the support be
What is the % of the R enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of R-carvone is -61
A solenoid of inductance L = 50 mH has a magnetic energy U = 3 x10-4 J with a density u = 0.0042 J/m3, What is the winding density n of the solenoid
Demonstrate your understanding of how the increases and/or changes in court workloads are impacting the offices that are responsible for court management.
If the equilibrium concentrations of both Cl2(g) and Br2(g) are 0.0200 M in a closed container, what will be the partial pressure of BrCl
Olympic cyclists fill their tires with helium to make them lighter. A cyclist filled her bicycle tire, which has a volume of 855 mL, to a pressure of 8.5 atm at 25 C with helium.
Type the genetic "sentences" representing two genes. Assume that the word "THE" represents a start codon, marking the beginning of a gene, and the word "END
When they specifiy that "Measure out xx mg of the phosphonium chloride salt and the appropriate amount of aldehyde, equivalents with respect to the the phosphonium chloride)
calculate the final temperature of the mixture of 150 g of ice initially at 13.5 celsius and 278 g of water initially at 84.5 celsius
Which would be safer if exposed to a flame, a gas can full of gasoline or a can with half air and half gasoline. Explain.