Question

exam 7: moles
what is the molar mass of kcl ?
keep two places after the decimal (the hundredths place).
g/mol

Explanation:

Step1: Find atomic masses

Atomic mass of K (potassium) is $39.10$ g/mol, atomic mass of Cl (chlorine) is $35.45$ g/mol.

Step2: Sum atomic masses

Molar mass of KCl = atomic mass of K + atomic mass of Cl = $39.10 + 35.45 = 74.55$ g/mol.

Answer:

74.55