MaxximusV242520 MaxximusV242520
  • 03-11-2022
  • Chemistry
contestada

6. What is the percent composition of chlorine in calcium chloride, CaCl₂?a. 32%b. 36%c. 50%d. 64%

Respuesta :

ReaganQ523841 ReaganQ523841
  • 03-11-2022

The first step we have to follow is to find the molecular mass of CaCl2.

[tex]\begin{gathered} Ca=40\times1=40 \\ Cl_2=35.45\times2=70.9 \\ CaCl_2=40+70.9=110.9 \end{gathered}[/tex]

Finally divide the mass of Cl2 by the mass of CaCl2 and multiply this product times 100:

[tex]\frac{70.9}{110.9}\cdot100=63.93[/tex]

It means that the correct answer is 64%.

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