Given 0.500 moles of H₂, how many grams of NH₃ would be produced?

0.333 mol NH₃

Explanation:

N₂  +  3 H₂  ⇆  2 NH₃

This is the reaction that produces NH₃.  Use the mole ratios to solve.  For every 3 moles of H₂ that are consumed, 2 moles of NH₃ are produced.

(0.500 mol H₂) × (2 mol NH₃/3 mol H₂) = 0.333 mol NH₃

You will produce 0.333 moles of NH₃.

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.

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