Lead will react with hydrochloric acid to produce lead (II) chloride and hydrogen. How many moles of hydrochloric acid are needed to completely react with 0.36 mol of lead?

0.72 moles of hydrochloric acid are needed to completely react with 0.36 mol of lead.

Explanation:

The balanced  reaction is:

Pb + 2 HCl → PbCl₂ + H₂

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of reagent participate:

You can apply the following rule of three: if by stoichiometry of the reaction 1 mole of Pb reacts with 2 moles of HCl, 0.36 moles of Pb will react with how many moles of HCl?

amount of moles of HCl= 0.72 moles

0.72 moles of hydrochloric acid are needed to completely react with 0.36 mol of lead.

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