Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO₂(g) →Na₂CO₃(s) + H₂O(l) Which is the limiting reactant when 1.85 mol NaOH and 1.00 mol CO₂ are allowed to react?

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Identify the balanced chemical equation: 2 NaOH(s) + CO2(g) → Na2CO3(s) + H2O(l). This equation shows that 2 moles of NaOH react with 1 mole of CO2.

Determine the mole ratio from the balanced equation: For every 2 moles of NaOH, 1 mole of CO2 is required.

Calculate the moles of NaOH needed to completely react with the given moles of CO2: Since you have 1.00 mol of CO2, you need 2.00 moles of NaOH (using the 2:1 ratio).

Compare the available moles of NaOH to the moles required: You have 1.85 mol of NaOH available, but you need 2.00 mol to react with all of the CO2.

Conclude which reactant is limiting: Since you do not have enough NaOH to react with all the CO2, NaOH is the limiting reactant.

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주요 개념

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Limiting Reactant

The limiting reactant is the substance that is completely consumed first in a chemical reaction, thus determining the maximum amount of product that can be formed. To identify it, one must compare the mole ratio of the reactants used in the reaction to the stoichiometric coefficients from the balanced equation.

Stoichiometry

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation. It involves using mole ratios derived from the coefficients of the balanced equation to determine how much of each reactant is needed or how much product can be formed.

Mole Concept

The mole concept is a fundamental principle in chemistry that relates the mass of a substance to the number of particles it contains. One mole of any substance contains Avogadro's number (approximately 6.022 x 10²³) of entities, allowing chemists to convert between grams and moles to facilitate stoichiometric calculations.

Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO2(g) → Na2CO3(s) + H2O(l) Which is the limiting reactant when 1.85 mol NaOH and 1.00 mol CO2 are allowed to react?