What mass of sodium hydroxide is needed to make 12.5 L of a 0.150M solution? a) 1.88g
b) 40.0g
c) 75.0g
d) 83.0g

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.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .