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When setting up their experiment (Iodine Clock Reaction), a student discovered that the solution in their flask turned bright pink upon adding 2 drops of the indicator, even before beginning the titration. What do you suspect was the mistake that the student made?
When dissolving a solid acidic sample with water, does it matter how much water we use to dissolve it? (Hint- it will change our calculations of our titration?)
W hat is crates acceleration
How much energy is needed to melt exactly 1000 aluminum cans, each with a mass of 14.0 g, for recycling? Assume an initial temperature of 26.4 C.
What is linear charge density of the insulating shell
A builder will use wood for floor support in building a house. The Young's modulus for this wood is 12 x 10^9 Newtons/meter^2. What would be the length of wood joists if the sag is not more than 25ft
A laser is mounted in air, m above the edge of a large, horizontalpane of crown glass (n = 1.520), as shown in the drawing. The laser is aimed at the glass in such a way that thereflected beam is 100% polarized.
sound with frequency 1220 leaves a room through a doorway with a width of 1.16 . at what minimum angle relative to the
When you drop a rock into a well you hear thesplash 2.4 seconds later. How deep is the well
An emf is developed by the moving conductor. The moving rod has a resistance of 2.1 ohms, while the resistance of the circuit-closing rod and rails in series with the rod is 89 ohms. The emf drives a current around the circuit. Neglecting friction..
The molecule has a rotational kinetic energy that is of the translational kinetic energy of its center of mass. What then is molecule's angular speed about the center of mass.
A satellite is in an elliptical orbit at altitudes ranging from310 to 890 km. Atthe high point it's moving at 7.33 km/s.How fast is it moving at the low point?
There is a uniform charge distribution of ? = 8.12 10-8 C/m along a thin wire of length L = 5.94 cm. The wire is then curved into a semicircle that is centered about the origin, so the radius of the semicircle is R = L/?. Find the magnitude of the el..
A wrecking ball (weight = 4800 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3600 N. As support cable runs from the top of the boom to the tractor.
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