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The two diffraction patterns are made on the screen. Determine the distance (in cm) among the common center of the diffraction patterns and the first occurrence of a dark fringe from one pattern fal
Explain by showing how this catalyst both accelerates the rate of reaction and regenerates it. A catalyst is something that accelerates the rate of reaction and is regenerated in the process. What i
A soap film having n = 1.33 is 308 nm thick and lies on the glass plate of n = 1.52. Sunlight, having wavelengths in vacuum expand from 380 to 750 nm, travels via the air and hits the film perpendic
Determine the lattice energy of calcium chloride given that the heat of sublimation of Ca is 121 kJ/mol and ΔHof (CaCl2) = -795kJ/mol.
How many Fe3O4 can be produced when 38.0g of H2O is mixed with 165g of Fe. Discuss what mass of reactant remains unchanged?
An amateur astronomer decides to construct a telescope from a discarded pair of eyeglasses. One of the lenses consists of a refractive power of 11 diopters, while the other consists of a refractive
Discuss how would the graph of temperature versus volume distilled appear for a perfect separation of methanol (boiling point of 65.4 degrees C) and toluene (bp 110 degrees C) using the fractionati
Profit for every big shelf is $85 and for every medium shelf is $75. To maximize profit, find how many big shelves (B) and find how many medium shelves (M) must be bought?
Determine the mobile phase used in gas chromatography? Calculate the stationary phase? Give an example of a stationary phase.
A battery encompassing an emf of 10.80 V delivers 100 mA if joined to a 71.0 load. Find out the internal resistance of the battery.
A microscope for viewing blood cells consists of an objective having a focal length of around 0.50 cm and an eyepiece having a focal length of around 2.5 cm. The distance between the objective and e
Assuming the drop has a volume of .050 mL, explain what volume of gas will be formed in the person's stomach at a body temperature of 98.6 degrees ferenhight and a pressure of 1.0 atm?
How would you determine how much to pay for a shipment, given that natural gas sells for $5.84 per MMBTU* , given a liquefied natural gas tanker with a rated capacity of 1.47 *10^5 m^3 liquid.
Why do atoms in the gas phase emit the excess energy in the form of light instead of losing the energy via collisions with other atoms in atomic spectrometry?
Find the refractive power of a magnifying glass which consists of an angular magnification of 5.41 if the image of the stamp is positioned at the near point?
If sodium iodide is added to the reaction mixture, the rate of methanol formation is dramatically increased (i.e. sodium iodide is a catalyst). Reaction of bromomethane with sodium hydroxide in wate
What will be the volume of this gas when measured dry at standard pressure? The volume of a certain gas is 235ml when collected over water at a temperature of 25 degrees C and a pressure of 698
Both encompass glasses which correct their vision to a normal near point (25.0 cm from the eyes) and both wear glasses 2.0 cm from the eyes. Relative to the eyes, determine the closet object which c
When a solution resulting from a stoichiometric reaction mixture of a sodium hydroxide, NaOH, and an unknown acid, HA is tested with litmus paper, the litmus is blue.
A nearsighted patient's far point is around 0.669 m from her eyes. She is capable to view distant objects in focus if wearing glasses having a refractive power of -1.54 diopters. Find out the distan
Discuss how would results be affected if acids other than acetic acid were present in vinegar? Why is it a good idea to rinse a burette w/a little of the solution that you're going to fill it with.
Find total FUTA and SUTA taxes for payroll? Company's SUTA rate is 5.4% and FUTA rate is given as 6.2% less 5.4% SUTA credit.
a) Approximate the uncertainty in any component of the momentum of an electron confined to the area of this size. b) From your answer to (a), approximate the kinetic energy of electron.
If HP denotes the parent acid and P- the conjugate base, determine the pH of a .12 M NaP solution formed when a tablet containing the salt is dissolved in a glass of water. One of the most common an
A uniform rectangular sign having width 52.2 cm, height 29.6 cm and negligible thickness suspends vertically from supporting hinges joined at its upper edge. Determine the period of small-amplitude