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How many moles of carbon dioxide are produced in the reaction between hydrochloric acid and calcium carbonat when 2 moles of HCI are used to start with?2HCl+CaCO 3 CaCl 2 +CO2 +H2O
A.2
B. 3
C.1
D. 4

Respuesta :

sebassandin

Answer:

C. 1.

Explanation:

Hello!

In this case, given the reaction:

[tex]2HCl+CaCO_3\rightarrow CaCl_2 +CO_2 +H_2O[/tex]

Thus, since there is a 2:1 mole ratio between HCl and CO2, as we are given 2 mol HCl, we compute the moles of CO2 as shown below:

[tex]n_{CO_2}=2molHCl*\frac{1molCO_2}{2molHCl}=1molCO_2[/tex]

Thus, the answer is C. 1.

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