Question
What is the molar mass of calcium chloride produced in the reaction between calcium carbonate and hydrochloric acid?
Answers
GPT-4o mini
To find the molar mass of calcium chloride (CaCl₂) produced in the reaction between calcium carbonate (CaCO₃) and hydrochloric acid (HCl), we first need to determine the formula of calcium chloride and then calculate its molar mass.
**1. Determine the formula of calcium chloride:**
Calcium chloride consists of one calcium ion (Ca²⁺) and two chloride ions (Cl⁻), which gives the formula CaCl₂.
**2. Calculate the molar mass of CaCl₂:**
- Molar mass of calcium (Ca) = 40.08 g/mol
- Molar mass of chlorine (Cl) = 35.45 g/mol
Now, we calculate the molar mass of CaCl₂:
\[
\text{Molar mass of CaCl}_2 = \text{Molar mass of Ca} + 2 \times \text{Molar mass of Cl}
\]
\[
\text{Molar mass of CaCl}_2 = 40.08 \, \text{g/mol} + 2 \times 35.45 \, \text{g/mol}
\]
\[
\text{Molar mass of CaCl}_2 = 40.08 \, \text{g/mol} + 70.90 \, \text{g/mol}
\]
\[
\text{Molar mass of CaCl}_2 = 110.98 \, \text{g/mol}
\]
Therefore, the molar mass of calcium chloride is **110.98 g/mol**.
**1. Determine the formula of calcium chloride:**
Calcium chloride consists of one calcium ion (Ca²⁺) and two chloride ions (Cl⁻), which gives the formula CaCl₂.
**2. Calculate the molar mass of CaCl₂:**
- Molar mass of calcium (Ca) = 40.08 g/mol
- Molar mass of chlorine (Cl) = 35.45 g/mol
Now, we calculate the molar mass of CaCl₂:
\[
\text{Molar mass of CaCl}_2 = \text{Molar mass of Ca} + 2 \times \text{Molar mass of Cl}
\]
\[
\text{Molar mass of CaCl}_2 = 40.08 \, \text{g/mol} + 2 \times 35.45 \, \text{g/mol}
\]
\[
\text{Molar mass of CaCl}_2 = 40.08 \, \text{g/mol} + 70.90 \, \text{g/mol}
\]
\[
\text{Molar mass of CaCl}_2 = 110.98 \, \text{g/mol}
\]
Therefore, the molar mass of calcium chloride is **110.98 g/mol**.