Oxytocin is a nonapeptide hormone in mammals. It is a facilitator for childbirth and breast-feeding. An aqueous solution containing 20.7 mg of oxytocin in 100.0 mL of solution has an osmotic pressure at 25°C of 3.80 mmHg. What is the molecular weight of the hormone?

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

How many grams of n2h4 will be consumed by 23 g of n2o4

How many grams of aluminum will there be in 98g of al2o3?