There is a beaker completely filled with water (beaker #1). Then in another beaker a block of wood is gently lowered into the beaker until it floats on its own (beaker #2). Both beakers are sitting on scales. Explain what happens to the reading on the scale after the block floats in the water (beaker #2), compared to the original reading (beaker #1). Assume any water that is displaced from the beaker drains to the floor. Limit your answer to a maximum of one written page. Hint: Think along the lines of Archimede’s principle.
The reading of the scale remains unchanged because the amount of water displaced is equal to the weight of the wood,
Which is nothing but the statement of Archimedes principle.
There is a beaker completely filled with water (beaker #1). Then in another beaker a block...
A beaker of mass MB, containing volume V of pure water, is at rest on a horizontal scale in a lab. A block of aluminum metal, mass mAl, is hanging from a spring scale and is completely immersed in the water. (a) [10 pts] Draw a fbd of the metal block, and write Newton’s second law, putting in all your forces. (You will need to look up “buoyant force” in Chapter 14, which we skipped.) Draw a fbd of the...
11. (10 pts) A glass beaker with volume 1 liter is completely filled with water at 20°C. How much water will spill out of the glass beaker when the temperature is raised to 90°C? Use the table below if needed (α and β are the coefficients of linear expansion and volume expansion, respectively. Approximate Coefficients of Thermal Expansion at 20oC a (10-"/oc) 23 12 Material Aluminum Concrete Diamond Glass Stainless Steel Water B (10°/oc) 69 36 3 27 51 207...
mass of One way of restating Archimedes' Principle is that the mass of a block that is floating in a fuid is equal to the the fluid displaced by the block. Imagine that we have a solid block in which all of the sides are 1 cm long-a cube with a volume of 1 cm (Fig.A1.4.2A). We set it in a beaker of pure water and find that, when the block and water come to rest, 70% of the block...
Help please EXPERIMENT: 26 ELECTROCHEMISTRY: GALVANIC AND ELECTROLYTIC CELLS Materials Required : 50 mL beakers (2) test tubes sandpaper glass U-tube cotton voltmeter 9.0 V battery connecting wires with alligator clips (2) thermometer iron nail paper clips (2) copper wire magnesium ribbon magnesium sulfate (MgSO) copper sulfate pentahydrate (CuSO, 5H,O) sodium chloride (NaCI) saturated sodium chloride (NaCI)solution phenolphthalein indicator SAFETY PRECAUTIONS: EYE PROTECTION MUST BE WORN AT ALL TIMES IN LABORATORY. Purpose of Experiment: Oxidation-reduction reactions will be performed and...
For the preparation and standardization of NaOH with KHP im supposed to boil water for 1hr and 30 min to remove CO2....the problem is that if I don't boil it for that long and (30 min) b/c of not enough time but I put the water I boiled for 1/2 hr aproximately into a NaOH bottle with a CO2 absorber and stored it there for a few days. I would assume that I would have to boil the water again...but...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution of NaCl be used instead of NaNO3? 7. What was the purpose of FeSO4 solution in this experiment? 8. Could a solution of FeCl, be used instead of FeSO4? 9. Could a solution of NaSO4 be used instead of FeSO4? 10. Calculate the standard cell potential for the spontaneous redox reaction between a Pb(s)/Pb(NO3)2(aq) half-cell and a Ag(s)/AgNO3(aq) half-cell. Which metal would be oxidized?...