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Calculate the volume of 1.222M sodium hydroxide needed to react with 32.5ml of 0.569M sulfurous acid? Where one mole of sulfurous acid reacts with two moles of the hydroxide ion)
If this were to cause the buckling of 1 mile of straight track into the isosceles triangle (with track raised up into air at half-mile mark) then how high off ground would track be lifted at midpoin
After skidding down a snow-covered hill on the inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.5 m/s.
Calculate the molarity of a solution of nitric acid if 0.216g of barium hydroxide is needed to neutralize 20.00 ml of nitric acid?
A railroad car having mass M moving at a speed v1 collides and couples with two coupled railroad cars, each of the similar mass M and moving in the similar direction at a speed v2. (i) Determine the
35.0 ml of a 1.75M solution of KNO3 is mixed with the 15.0ml of a 2.50M solution of KNO3. Calculate the molarity of the KNO3 after the solutions have been mixed?
The two disks are mounted (similar to a merry-go-round) on low-friction bearings on the same axle and can be brought altogether so that they couple and rotate as one unit.
Calculate the maximum amount of benzaldehyde impurity that could be in a sample of anisole (methoxybenzene) before it "failed" elemental analysis according to the JOC standards.
Determine the maximum amount of electrical work that may be generated by oxidizing 1 mole of hydrogen to water in a fuel cell. For combustion of hydrogen H2(g) + 1/2O2(g) -> H2O(l) the reaction e
The energy in an oscillating LC circuit having a 0.75 H inductor is 2.30 µJ. The maximum charge on the capacitor is around 75 µC. Determine the mass for a mechanical system having the sa
Compute the amount of heat that will be given off by burning 1mole of hydrogen gas. For combustion of hydrogen H2(g) + 1/2O2(g) -> H2O(l) the reaction enthalpy is-286 kJ/mol and the reaction Gibbs
A bar magnet is aligned East-West, pointing at the center of the compass. If the center of the magnet is 0.29 m from the center of the compass, the compass deflects 70 degrees. Determine the magneti
A horn on a boat sounds a warning and the sound penetrates the water. Explain how does the frequency of the sound in the air compare to its frequency in the water? Explain how does the wavelength in
Determine the change in molar Gibbs free energy when the pressure is increased by 1bar. The molar volume of liquid water is 18 cm^3/mol at 1 bar and 298 K.
Write down an equation that shows the pH dependence on the chromate,CrO42 /dichromate,Cr2O72-, equilibrium system.
The frequency of a light wave is similar if the light travels in two distinct media. Supposing that the refraction indices of the two media are 1.099 and 1.368, correspondingly, determine the ratio
By calculating both of the distances PM and MQ, illustrate that PM=QM (This shows that M lies on perpendicular bisector of line segment PQ, but it doesn't show that M actually lies on PQ)
Determine the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n=4 to the n=1principal energy level. Where Hydrogen En= -2.18x1
A transverse wave on a string consists of an amplitude A. A tiny spot on the string is colored red. As one cycle of the wave passes by, determine the net distance traveled by the red spot?
Explain what would be the density of gaseous silane (SiH4) at 24 °C and 746mmHg? (mass/volume) Discuss in detail.
At one instant, force = 7.47 N acts on the 0.191 kg object which consists of position vector of (2.97 -2.97) m and velocity vector (-5.47 + 5.47) m/s. About the origin and in unit-vector notation, d
Determine the wave length of a neutron that has a velocity of 200. cm/s ( the mass of a neutron = 1.675 x 10-27kg.
Determine the mass of solution the student should use. A chemistry student requires 75 g of thiophene for an experiment. He has available 0.50 kg of a 29.3% w/w solution of thiophene in carbon tetr
Your friend consists of a near point of 121 cm, and she wears contact lenses that encompass a focal length of 37.0 cm. Explain how close can she hold a magazine and still read it clearly?
School wishes to build the wheel-chair ramp, with the incline of 15 degrees, from ground to door. How much horizontal distance is required for ramp?