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Arsenic in 7,150 g of a herbicide is converted in arsenate ions (AsO4{3-}) and the arsenate ions form a precipitate of Ag3AsO4 with 25,00 ml of AgNO3 solution 0,05000 M. The excess of Ag{+} is titrated with 3,85 ml of a KSCN solution 0,0500 M. Calculate the % concentration of arsenic in the sample.
We know light speed (average) gets slow while in transparent materials like glass and water. And fraction of it gets absorbed as a heat (K.E. of molecules of glass). But my question is that How it can then leaving glass slab or any glass material ..
On an air track, a 400g glider moving to the right at2.00 m/s collides elastically with a 500g glider moving in theopposite direction at 3.00 m/s. Find the velocity of first glider after the collision
A sledge loaded with bricks has a total mass of 18.9 kg and is pulled at constant speed by a rope inclined at 20.1° above the horizontal. The sledge moves a distance of 19.4 m on a horizontal surface. The coefficient of kinetic friction between th..
a car travels at a constant speed around a circular track whose radius is 2.70 km. the car goes once around the track
A ball of mass 0.30 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to..
Two loudspeakers are placed next to each other and driven by the same source at a frequency of 570Hz. A listener is in front of the speakers and on the line separating them.
Unpolarized light with intensity I0 is sentrst through a polarizer with the polarizing axis aligned in the vertical direction, and then through a second polarizer with the polarizing axis oriented 30° from the vertical. What is the intensity of the o..
By plucking the wire they can tell that the resulting wave takes .5s to travel the length. The wire has a mass of 100g. What is the gravity?
Physics, calculate magnitude of potential difference +-
A uniform disk of radius 0.519 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A 1500 kg artificial satellite will appear to be stationary to anobserver on Earth if its period is exactly equal to Earth'srotation period, i.e one day. (a) What must the orbitalradius of such a satellite be? and (b) What will be its orbitalspeed?
A positive charge, Q = 45 is placed on the x-axis at x = -1.9 cm. A positive charge which is twice as large is brought from infinity to a point x = +1.9 cm on the x-axis. what would be the speed of the 2*(45) charge at infinity
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