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A variety of units can be used to measure the concentration of solute in a solution. In general, a concentrated solution is one where the amount of solute in a given volume of solvent is great. A dilute solution is one where the amount of solute in a given volume of solvent is relatively small. But can we mix up a solution of any concentration? For example, can we produce a 90% solution of table salt in water? How about a 90% solution of table salt in gasoline? A few substances are infinitely soluble, or miscible, which means that they can be mixed together in any proportion. Ethyl alcohol and water are an example of miscible substances since they can be mixed together in concentrations ranging from pure alcohol to pure water. However, most substances are not infinitely soluble. Solubility is a term used to describe the amount of solute which can be dissolved in a solvent. The solubility of two substances will depend on the similarity of the two substances. As mentioned on the last page, some substances (such as oil and water) have a solubility of close to zero. Most substances, however, will have a solubility somewhere between complete insolubility and complete miscibility.
A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.0890 meter, an angular speed of 91.0 rad/s, Obtain the magnitude of angular deceleration of cylinder
your friend has been given a laser for her birthday. unfortunately she did not receive a manual with it and so she
The plates of a spherical capacitor have radii 33.0 and 42.0 mm. Calculate the capacitance. What must be the plate area of a parallel-plate capacitor withthe same plate separation and capacitance?
In Millikan's experiment, an oil drop of radius 2.407 µm and density 0.860 g/cm3 is suspended in chamber C when a downward-pointing electric field of 1.92 105 N/C is applied. Find the charge on the drop
Two identical particles of mass m are trapped by an external one dimensional harmonic oscillator potential, but do not interact with each other. The energy levels for a single particle in the potential are En = (n + 1/2)(h_bar)(ω) for n = 0,1,2,3,..
After integrating the electric field for the entire rod, why didthe radius go from R^2 to R and why does the product remainnegative?
Two identical guitar strings are prepared such that they have the same length (2.43 m) and are under the same amount of tension. find the wave propagation speed on the guitar strings
The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. There fore, atransformer is plugged into the wall socket and produces the necessary voltage for charging the batteries.
A string is attached to a rigid support and the cylinder allowed to drop from rest. Find out the acceleration of the cylinder.
A styrofoam box used to keep drinks cold at picnic has total wall area(including the lid) of 0.80m2 and wall thickness 2 cm. it is filled with ice, water and cans at 0 Celsius. What is the rate of heat flow into the box if temperature of the outsi..
What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight, What must the charge (sign and magnitude) of a particle of mass 1.40g
a solid sphere of radius r 40cm has a total positive charge of 26 mc uniformly distributed throughout its volume the
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