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What happens in a redox reaction when the 10 drops of iron sulfate is mixed with the 2mL of 3 percent peroxide? Does the 2H dissociate from the sulfate and form H2 gas or what? Does 2HSO4 and 2FeO p
If a 22-gram serving is put out for Dave, it takes him 5 minutes to consume half of it. The rate at which Pat's rat Dave eats his food has been found to follow second-order kinetics. Discuss how lo
Compute an electron with n=1 in a box of length 2.000 nm. Determine the probability of locating the electron (a) between 0.500 nm and 0.502 nm and (b) among 0.999 nm and 1.001 nm.
If the initial concentrations of Br2 and Cl2 are each 0.020038 M, what will be their equilibrium concentrations in M? At 25 °C, Kc= 0.145 for the following reaction in the solvent CCl4&n
Calculate the pressure if 1.0 mole of N2 gas is added to the container while keeping the temperature and the size of the container the same?
Assume the particle to be in the lowest level. Calculate the probability of locating a particle in a one-dimensional box between L/4 and3L/4, where L is the length of the box?
Calculate the probability of locating the electron (a) between 0.500 nm and 0.502 nm and (b) between 0.999 nm and 1.001 nm. Do not use integration.
Determine the number of grams of NH4Br that have to be dissolved in 1.00L of water at the 25degrees C to have a solution with a pH of 5.16
How long does it take for the water to reach the boiling point? The specific heat of copper is 0.385 J/(g*°C). A 300.0 g copper pan containing 800.0 mL of water is put on the stove.
"The gas is a compound of hydrogen and nitrogen in the atomic ratio 1: 3. A sample of ammonia which is having 1.712 g H and 7.933 g N. calculate the atomic mass of N relative to H?"
HCl and NaOH are each 1.0M and used 50mL of each. Explain how would it affect the enthalpy per mol of water formed if 1.0M HNO3 were used instead of the HCl?
Determine the numbers of milli moles of a solute are present in 500.0mL of.3500 M. Also, if 25.00 mL of that solution is pipette into a 200 mL volumetric flask and distilled water added to the mark
How can develop the Henderson-Hasselbalch equation for buffers starting from a buffer solution that contains a weak acid (HA) and its conjugate base (A-)?
.Determine the absorbance of the solution if its concentration is 0.0278 M and its molar extinction coefficient is35.9 L/(mol cm). The depth of the cell is 5 mm.
How can find the emf formed in the rod when a metal rod of length 0.25m is moving at the speed of 0.5m/s in a direction perpendicular to a 0.25T magnetic field.
Suppose your computer does not start one morning and you know that by using the scientific method you might not only calculate the cause of the problem but by acting on your hypotheses you might get
Which particle will move un-deflected through the field if the Alpha particles having speed 1000m/s to2000m/s enters into a velocity selector where the electric intensity is 300 V/m and the magneti
Determine pH of this solution at the 25C when a solution is made up dissolving the 45.0g of "soda ash" (99.0% pure Na2CO3, by weight)) and 20.0g of 100% pure K2CO3 in 5.0Liters of aqueous solution
What do these observations tell us about the nature of the DDT molecules? The pesticide DDT concentrates in the fat of animals and tends to remain in the soil despite heavy rain that washes away oth
How about if the temperature was 60 degrees Celsius? At 10 degrees Celsius, which is more concentrated, a saturated solution of potassium nitrate or a saturated solution of potassium chlorid
Is it correct to say that the only ions an acidic solution contains are H+ ions and that the only ions a basic solution contains are OH- ions? If not what would the correct descriptions of s
As well, suppose that diffraction effects, instead of atmospheric turbulence, limit the resolving power of the telescope. Determine the maximum distance which these stars could be from the earth.
Determine the final temperature of the water when the specific heat of water is 4.184 J/(g*°C) if 35.3 kJ of energy is absorbed by 500.0 g of water at 10.0°C.
Determine the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-). The pH of a bicarbonate-carbonic acid buffer is 7.70.
The light shining on the diffraction grating consists of a wavelength of 476 nm (in vacuum). The grating generates a second-order bright fringe whose position is defined by an angle of 9.45°. De