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Compound X has a methylene chloride/water distribution coefficient of 4.6/ explain how much of a 2.0g sample of X dissolved in the 30 mL of water will be extracted by 20 mL of methylene chl
When 50.00 mL of 0.100 M AgNO3 and 50.00 mL of HCl are mixed in a constant-pressure calorimeter, the temperature of the mixture increases from the 22.30 to 23.00degree Celsius, the temperature
Determine how much caffeine should be obtained when a mixture composed of 20 mL of water layer with the 25mg of caffeine in it before extraction and 2 x 6 mL for the CH2Cl2 layers.
Explain why does CH2Cl2 solvent (lower layer) have higher density than the water while non-chlorinated solvents like hexanes and ether have lower density than the water, i.e. what exactly is i
What 20th-century developments in science and mathematics led to radical change in outlook on nature? Do you believe that prosperity enjoyed in developed world endows the responsibility to share knowl
Assume that the specific heat of the rocks is 0.082 J/g-k, large beds of rock are used is some solar-heated homes to store heat. Determine the quantity of heat absorbed by the 50.0 kg of rocks
A student forms a short electromagnet by winding 100 turns of wire around a wooden cylinder of diameter d = 2.0 cm. The coil is joined to a battery generating a current of 2.0 A in the wire. (i) Fi
Explain how much heat does it take to raise the temperature of 225 grams of water from the 25 degrees Celsius to 100 degrees Celsius?
The two positive point charges on the y-axis, each of which consists of a charge of around 5.0 x 10-9 C, are positioned at y = +0.40 m and y = -0.40 m. Determine the magnitude and direction of the r
Determine what will the final temperature be for a 5.00 gram silver ring at37 degrees Celsius if it gives off 25.0 J of heat to its surroundings? [sAg = 0.235 J/g degrees Celsius]
What will its temperature be after it absorbs 4.22 kJ from its surroundings when a 454 gram block of lead is at an initial temperature of 22.5degrees Celsius. [sPb = 0.128 J/g degrees C
A cyclist accelerates so that the tire goes from the angular speed of 1rad/s to an angular speed of around 3rad/s as he travels as he travels 18m on the road. (Suppose the tire rolls devoid of slipp
The water temperature rises from 20.1 degrees Celsius to 22.6 degrees Celsius. A 23.9 gram sample of iridium metal is heated to 89.7 degrees Celsius and then dropped into the 20.0 grams of wate
After mixing the two, the temperature rises to 21.21 degrees Celsius. Calculate the heat generated by the reaction, and then calculate how many kJ were released per mole of reactant.
What is the partial pressure of Xe in the mixture when a mixture of Kr and Xe has a density of 2.50 g/L at a total pressure of 0.500 atm and at 0 deg C.?
Determine the numbers of monochlorination products are expected from the reaction of 2,4-dimethylpentane and chlorine in the presence of light?
Determine the chemical equation for the dehydration of cyclohexanol? Determine the theoretical yield for the dehydration of 3.0ml of cyclohexanol.
The two point charges of values +3.4 and +6.6 micro-coulombs, correspondingly, are separated through 0.20 m. Determine the potential energy of the 2-charge system?
What is the ratio of the number of moles of cyclo-propane to moles of oxygen when a balloon contains an anesthetic mixture of cyclo-propane (cp) and oxygen (O2) at 172 torr and 570. torr, respective
A proton (having q = +1.6 x 10^-19C) moves 15 cm all along the direction of an electric field of strength 3.0 N/C. The electrical potential difference among the proton's initial and ending points is
Determine the mass matom of the single atom in kilograms? (Note that 1u=1.6605×10-27kg). Determine how many moles of atoms are in a 285-gsample?
Determine the numbers of grams of Na2CO3 are present in the 575L of the Na2CO3solution? (Create a conversion factor to convert from the sample with a volume of 15mL to a solution with a volume of 57
A plane electromagnetic wave is traveling all along the x-axis. When the electric field of the wave consists of a maximum value of 2x10^-4 N/C and lies all along the y-axis, determine the wave's max
What optical rotation will be observed for this compound when measured in a 1 dm tube at a concentration of 0.2 g/10 mL? The (+) enantiomer of a particular compound has a specific rotation of&nbs
The position of the third-order maximum is around 6.70 cm from the center of the central maximum. i) Determine the wavelength of the light.