How much positive and negative charge is there in a cup of water ? Given mass of one cup of water = 250 g

Many organic substances are negatively charged e.g., acetic acid, while others are positively charged e.g., ammoniumion. An aminoacid under certain conditions would have both positive and negative charges simultaneously in the same molecule. Such a form of aminoacid is called

How many number of water molecules are present in a drop of water having mass 0.018?

How will you prove that electrons are negatively charged particles with a definite mass?

How much water Saguaro Cactus can store?

The sense of an angle is said to be positive or negative according as the initial side rotates in anticlockwise or clockwise direction to get to the terminal side. If a man moves along a circular path after completing 2 rotating he makes a positive angle of 150^g . then At this position how much angle he makes along clockwise direction ?

Calculate the no. of molecules present in one drop of water of mass 0.05 g

A rubber ball of mass 10 g and radius 2 cm is submerged in water up to a depth of 5 cm and released. Find the height up to which the ball pops up above the surface of water, neglecting the resistance of water and air. The density of water = 1g*cm^(-3) .

Two identical metallic spheres are given charges +q and -q respectively. Now, (A) Both spheres have equal masses (B) The mass of the positively charged sphere is less than the negatively charged one. (C) The mass of the negatively charged sphere is less than positively charged one. (D) The change in the masses depends on the magnitude of charge transfer.

A solid of mass 70 g is heated and dropped in a calorimeter of water equivalent 10 g conaining 116 g of water. If the fall in temperature of the solid is 15 times the rise in temperature of water, find the specific heat capacity of the solid .