El oxido de titanio (IV) TiO2 es una sustancia blanca que se
produce por la reacción de ácido
sulfurico (H2S04) con el mineral
ilmenita (FeTi03): FeTiO3 + H2S04
TiO2 + FeSO4 + H20Sus
propiedades de opacidad y no
toxicidadlo hace una sustancia
idónea para pigmentos de
plásticos y pinturas. En un
proceso 1.85Kg de FeTiO3 al 95%
de pureza reaccionaron con 2.48
Kg H2S04. Determinara.
1. Reactivo límite y reactivo en
exceso.
2. Gramos de Oxido de titanio (IV)
formados en la reacción
3. Gramos del reactivo en
exceso que no participan en la
reacción.​

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.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2