10.41 grams NH3 X (1 mol/17.00 grams) = 0.612 moles NH3 X (3 mol H2 / 2 mol NH3) = 0.918 moles H2.
Definition. A sprained ankle is an injury that occurs when you roll, twist or turn your ankle in an awkward way. This can stretch or tear the tough bands of tissue (ligaments) that help hold your ankle bones together. Ligaments help stabilize joints, preventing excessive movement. A sprained ankle occurs when the ligaments are forced beyond their normal range of motion. Most sprained ankles involve injuries to the ligaments on the outer side of the ankle. Treatment for a sprained ankle depends on the severity of the injury.
Subscribe to our Pain Management Advisor e-newsletter for tips to manage pain. Injury to any of the bones, ligaments or tendons in the ankle can cause ankle pain. A very common cause of ankle pain is a sprain, which occurs when the ankle joint is subjected to forceful twisting or bending. This can cause an ankle ligament to stretch or even tear. Ankle sprains can happen during sports or simply when you walk on an uneven surface or make a misstep. Common causes of ankle pain include: 1  Achilles tendinitis. 2  Achilles tendon rupture. 3  Avulsion fracture. 4  Bone spurs. 5  Broken ankle/broken foot. 6  Bursitis. 7  Gout.