A piece of gold wire has a diameter of 0.506 mm. If gold has a density of 19.3 g/cc, how long (in meters) should you cut a piece of wire to obtain 0.0323 moles of gold?

Given :

Diameter of gold , .

Density , .

To Find :

How long (in meters) should you cut a piece of wire to obtain 0.0323 moles of gold .

Solution :

Molecular mass of gold , MM =197 g/mole .

Mass of gold :

Volume is given by :

Now , volume is given by :

Therefore , length of wire is 1.65 m .

Hence , this is the required solution .

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation:

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.