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Q1. Which type of intermolecular attractive force operates between (a). all molecules, (b). polar molecules, (c) the hydrogen atom of a polar bond and a nearby oxygen atom?
Q2. Which member of the following pairs has the larger London dispersive forces: (a). H2O or H2S, and (b). CO2 or CO?
What is the activation energy in kJ of a reaction whose rate constant increases by a factor of 10 upon increasing the temperature from 303 K to 333 K
Solid lead(II) sulfide reacts with aqueous hydrochloric acid to form solid lead(II) chloride and dihydrogen sulfide gas. Express the answer in a balanced chemical equation with all phases identified.
The heat combustion of naphthalene is -40.1kJ/g. When 0.8210g of naphthalene was burned in a calorimeter containing 1,000g of water, a temperature rise of 4.21 degree celcius was observed
Sketch the temperature dependence for i) a simple paramagnet, (ii) ferromagnetically coupled material, (iii) antiferromagnetically coupled material
A serving of Grape-Nuts cereal (5.46g) is burned in a bomb calorimeter with a heat capacity of 43.1 kJ/degrees C. During the combustion, the temperature of the water in the calorimeter increased by 1.76 degrees C. Calculate the energy content (in ..
Calculate how many whole drops (.05 mL/drop) of 6 M HCl are required to dissolve this. (I found this to be 11.59 drops
Find the specific heat of an unknown metal if a 35.5 gram sample at 99.6 degrees Celsius produced a resulting temperature of 26.1 degrees Celsius when placed in a calorimeter containing 100.5 grams of water at 20.2 degrees Celsius.
Consider the following reaction: CO(g)+2H2(g)-->CH3OH(g) Kp=2.26*10^4 at 25 degrees C. Calculate deltaGrxn under each of the following conditions- At STP, at Equilibrium, and when PCH3OH=1.1 atm, and pCO=pH2=1.3*10^-2 atm.
The density of benzene at 25.0 degrees C is 0.879g/cm3. What is the volume in liters of 2.5 kg benzene
A 5.00 g sample of KBr at 25.0°C dissolves in 25.0 mL of water also at 25.0°C. The final equilibrium temperature of the resulting solution is 18.1°C.
If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.41 mol of glucose?
In the formation of diacetylferrocene, the product is always the one in which each ring is monoacetylated. why is no diacetylferrocene produced in which both acetyl groups are on the same ring
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