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☆☆☆☆☆The atom
the metal on which electroplating is to be done is taken as cathode ( negative electrode) . the metal of which electroplating is to be done is taken as anode ( positive electrode) and the salt solution of the metal of which electroplating is to be done is taken as electrolyte .
example-
if we want to electroplate iron with copper then iron is taken as cathode and copper is taken as anode and electrolyte is copper sulphate.Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes. This is done through the use of copper in a copper sulfate bath.
The average atomic mass represents the weighted average of the masses of the isotopes of the element.
16.0 lbs = 7,257 g of O2
Oxygen exists in the gas form as 02
7,257g O2 * 1 mol O2/ 32 g * 2 mol O / 1 mol O2 * 6.022x10^23 atoms/mol
= 2.73E26 atoms of O
Stoichiometry is used to find the molar ratios between the reactants of a chemical reaction.
The amount of product will be limited by the number of moles of the limitin... reagent.
There are relatively few atoms, but they make many molecules.
When a potential difference is applied across the electrodes, one becomes positive (the anode) and one negative.(the cathode). Ions in the electrolyte are attracted to the electrodes, and move towards them. Here they are discharged, resulting in chemical changes. At the anode, negative ions give up their electrons, and at the cathode positive ions receive electrons, which maintains a flow of electrons (a current) in the external circuit. The electrolyte may be molten, or a solution. For instance, in molten sodium chloride, positive sodium ions move to the cathode where they accept electrons and become sodium atoms, i.e. sodium metal is formed. At the same time, negative chloride ions move to the anode and lose electrons, forming chlorine atoms, which combine to make chlorine molecules, and chlorine gas is evolved.
Periodic trends illustrate how some elements are very reactive while others are stable.
-0.59 V
it loses mass
+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1. Therefore, the single chlorine atom must have an oxidation state of +5 for the total oxidation states to add to zero.
+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1
It prevents charges from building up in the solutions.
electronegativity
In this case the yield is 77,27 %.
Magnetism can create electricity, and electricity can create magnetism.
The amount of Koh
The color of corn is different than the color of gasoline or coal
APEX
It is 7.28*10^-7 in scientific notation
