Calculate the molar mass of KOH. 112g/mol 84g/mol 28g/mol 56g/mol

The molar mass of KOH is $56g/mol$.<br /><br />To calculate the molar mass of KOH, we need to add up the atomic masses of each element in the compound.<br /><br />The atomic mass of potassium (K) is approximately 39.1 g/mol.<br />The atomic mass of oxygen (O) is approximately 16.0 g/mol.<br />The atomic mass of hydrogen (H) is approximately 1.0 g/mol.<br /><br />So, the molar mass of KOH is:<br />$39.1 g/mol + 16.0 g/mol + 1.0 g/mol = 56.1 g/mol$<br /><br />Therefore, the correct answer is $56g/mol$.