Alligation Alternate Method (Part 2)

✔ https://StudyForce.com ✔ https://Biology-Forums.com ✔ Ask questions here: https://Biology-Forums.com/index.php?board=33.0 Follow us: ▶ Facebook: https://facebook.com/StudyForcePS/ ▶ Instagram: https://instagram.com/biologyforums/ ▶ Twitter: https://twitter.com/studyforceps Q1. In what proportion should alcohols of 95% and 50% strengths be mixed to make 70% alcohol? Q2. In what proportion should 20% benzocaine ointment be mixed with an ointment base to produce a 2.5% benzocaine ointment? Note: Ointment base doesn't contain any active ingredient. Q3. A hospital pharmacist wants to use three lots of ichthammol ointment containing, respectively, 50%, 20%, and 5% of ichthammol. In what proportion should they be mixed to prepare a 10% ichthammol ointment? Q4. In what proportions may a manufacturing pharmacist mix 20%, 15%, 5%, and 3% zinc oxide ointments to produce a 10% ointment? Q5. How much 50% w/v dextrose solution (in milliliters) and how much 5% w/v dextrose solution (in milliliters) are required to prepare 4500 mL of a 10% w/v solution?