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Explain what properties do all the silicates have in common and also determine what differences might there be differences?
Which substance is more likely a polar molecule? Explain in detail when substance A is composed of small molecules and boils at 100 degrees Celsius and substance B is composed of molecules but it b
Discuss is an electron ever even momentarily found among the first and second levels of energy? Explain your answer based on the wave properties of electrons.
Discuss how does Bohr's planetary model of the atom explain this phenomenon when a given atom emits red light and the green light, but never blue light.
At 25 °C Ar gas which is having 8.0 g of (molar Cv, m=12.47 J/K/mol) contracts the isothermally and reversibly from the 2L to 1 L. Determine: n, ΔU,ΔH, ∂q, Cv, ΔT, &p
A circular track consist of a circumference of 314m with AB as one of its diameters. A cyclist’s travel from A to B all along the circular path. Determine (i) Distance moved by the cyclists. (
A ball of 300 g swings in the vertical circle at the end of a 1.7 m long string. If the ball is at the bottom of the circle, the tension in the string is 19N. Determine the speed of the ball at that
Determine the effect of an increase in the pressure of 75 bar at 25 0C on the vapor pressure of benzene, which is having the density 0.879 gcm-3 (MMC6H6= 78.11 g mol-1).
Show that if a valve separating a vessel of pure A from a vessel having a mixture of A and B is opened, mixing will occur by invoking the pressure dependence of the chemical potential.
Approximating the man through a vertical cylinder of radius Rm = 0.205 m, find out an equation (specific expression) for the angular velocity of the platform as a function of time. Find out the angu
When it takes 3.80 x 10-13 s for a nitrogen molecule to strike a wall and rebound with the same speed however moving in an opposite direction (supposed to be the negative direction), determine the
Find out the final temperature when you are given the steel and oil, the oil has 116.6 lb mass and the steel has a 23.3 lb mass. The specific heat of the oil is .45 and the specific heat of the stee
Calculate the percent sulfate ion in this unknown if 1.405 grams of an unknown yields 0.491 grams of barium sulfate when treated with the excess barium chloride.
Determine the weight of barium sulfate expected if excesses the barium chloride solution is added to the 0.463 grams of potassium sulfate.
Discuss what kind of deviation from ideality is expected from the Freon? Freon is a liquid under pressure at room temperature; its normal boiling point is not too far from room temperature.
LP speed makes the better quality picture, so she wants to maximize time recorded at LP speed. Determine amount of time to be recorded at every speed.
A compound with a fragrant odor reacts with a dilute acid to give the two compounds, A and B. Compound B is identified as an acid consisting of 48.7% C, 8.1%H, and 43.2% O.
The constant pressure molar heat capacity of NH3(g) is given by Cp,m= a - bT + c/T2, where a, b, c are constants that determine how the heat capacity of NH3(g)varies with temperature.
If a surface is illuminated with light of wavelength λ, the maximum kinetic energy of the emitted electrons is 1.1eV. When the wavelength .8λ is employed, the maximum kinetic energy of
When the plant or animal dies it ceases replacing the carbon and amount of 14C starts parchment fragment was found that had about 76% as much 14C radioactivity as does plant material on Earth today
Determine the absorbance of a solution that has been prepared by taking the15.0 mL of the original red dye solution and diluting it to 100.00 mL if the absorbance of a solution of "red dye #3" is 0
The outdoor circular fish pond consists of a diameter of 4.00 and a uniform full depth of 1.90. A fish halfway down in the pond and 0.50 from the near side can just see the full height of a 1.84 tal
At this point, the person doing the laundry opens the lid, and a safety switch turns off washer. The tub smoothly slows to rest in 12.0 s. During how many revolutions does the tub turn as it is in m
Describe the property of a solution makes distillation possible? During a distillation why is it absolutely necessary to have the thermometer correctly placed?
They found that t years after study started population size,N(t), was increasing at the rate proportional to 1100-N(t). If population was 500 in year 2000, find size of elk population in year 2010?