minta tolongg dong

<p>Massa KOH padat yang harus ditimbang adalah</p><p><strong>5,6 gram</strong></p><p>&nbsp;</p><p>&nbsp;</p><p><strong>Pembahasan&nbsp;</strong></p><p><i>Molaritas </i>: jumah mol zat terlarut dalam 1 liter larutan.&nbsp;</p><p>[KOH] = 0,4 M</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 0,4 mol/L</p><p>Volume larutan = 250 mL = 0,25 L</p><p>mol KOH = 0,25 × 0,4&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 0,1 mol</p><p>&nbsp;</p><p>Massa KOH = mol × M_r KOH</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 0,1 × 56</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 5,6 g</p><p>&nbsp;</p>