A nurse is preparing to administer acetaminophen 10 mg/kg PO every 4 to 6 hr PRN pain to a toddler who weighs 26.4 lb. Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)