Question

calculate the molar mass of koh. 84 g/mol 56 g/mol 28 g/mol 112 g/mol

Explanation:

Step1: Find atomic masses

Atomic mass of K: $39\ g/mol$, O: $16\ g/mol$, H: $1\ g/mol$.

Step2: Sum atomic masses

Molar mass of KOH = $39 + 16 + 1 = 56\ g/mol$.

Answer:

B. 56 g/mol (assuming the purple option is labeled B, with text "56 g/mol")