buoyancy problems word problems with solutions

Buoyancy - A cork is pushed down into water kept in a glass. We find that as soon as it is released, the cork rises on its own and comes to the surface. Pressure pushes cork upwards To keep it beneath the surface of water, we have to exert downward force. This means that, when the cork is..

A cork is pushed down into water kept in a glass. We find that as soon as it is released, the cork rises on its own and comes to the surfac..

It is a matter of common experience that bodies appear lighter when immersed in water or any other liquid. While bathing we notice that the mug of water suddenly appears heavier as soon as it comes above the water surface. Similarly, when a fish is pulled out of water, it appears to be heavier in a..

If every element of A belongs to a set B, and every element of B belongs to C, then clearly every element of A belongs to C. In other words A B and B C then A C..

5. What is the mass of hydrogen peroxide present in 1 litre of a 2M solution? Calculate the volume of oxygen at STP liberated upon the complete decomposition of 100 cm 3 of the above solution..

2. Write an equation for the half reaction in which the magnesium metals is oxidized to magnesium ions, Mg 2 + in aqueous solution..

14. The solubility product of AgCl in water is 1.5 x 10 - 1 0 . Calculate its solubility in 0.01 M NaCl aqueous solution..

17. A 100 W, 220 V incandescent lamp is connected in series with an electrolytic cell containing copper sulphate solution. What weight of copper will be deposited by the current flowing for 5 hours? (At. mass of Cu = 63.54..

14. Commercially available concentrated hydrochloric acid contains 38% HCl by mass. (a) What is the molarity of this solution? The density is 1.19 g/mL. (b) What volume of concentrated HCl is required to make 1.00 L of 0.10 M HC..

17. The concentration of Ca + + in blood is 0.0025M. If an oxalate solution with oxalate ion concentration 1 x 10 - 7 M is added to it, state whether precipitation occurs or not. Solubility product of calcium oxalate = 2.3 x 10 - 9..