Question

what is the molar mass of calcium iodide? ca 40.08 g/mol i 126.90 g/mol cai₂ 166.98 g/mol 40.08 g/mol 126.90 g/mol 293.88 g/mol

Explanation:

Step1: Calculate the molar mass of calcium

The molar mass of \(Ca\) is given as \(40.08\ g/mol\).

Step2: Calculate the molar mass of iodine in \(CaI_2\)

Since there are \(2\) iodine atoms in \(CaI_2\), the molar mass contribution of iodine is \(2\times126.90\ g/mol = 253.8\ g/mol\).

Step3: Calculate the molar mass of \(CaI_2\)

Add the molar mass of \(Ca\) and the molar mass of \(I_2\): \(40.08\ g/mol+253.8\ g/mol = 293.88\ g/mol\).

Answer:

\(293.88\ g/mol\)