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. 0.918 mol H2 X 2.01 g/mol = 1.85 grams H2 required. 7.94 X 10^-4 g H2 X (1 mol/2.01 grams) = 0.93.95 X 10^-4 mol H2 X (2 mol NH3 / 3 mol H2) = 2.63 X 10^-4 moles NH3.
sprain. n. 1. A painful wrenching or laceration of the ligaments of a joint. 2.The condition resulting from a sprain. tr.v. sprained, sprainÂ·ing, sprains. To cause a sprain to (a joint or ligament).. A painful wrenching or laceration of the ligaments of a joint. 2. The condition resulting from a sprain.
What is a sprain? A sprain happens when a ligament is stretched or torn. Ligaments are tough tissues that connect bones. Ligaments support your joints and keep your bones in place. They allow you to lift, lower, or rotate your arms and legs. A sprain may involve one or more ligaments. What causes a sprain? A sprain is usually caused by a direct injury or sudden twisting of the joint. This may happen while playing sports, or may be due to a fall or car accident. The following may increase your risk of a sprain: Overuse of your muscles or muscle fatigue. A sudden increase in the amount and intensity of sports training.