How much water is required to convert 500 ML of 0.3 M solution of NA2S04 into 0.05M?

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.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at