The equation for the complete combustion of butane gas (C4H10) is: 2 C4H10 + 13 O2 -8 CO2 + 10 H2O
Measured under STP, how many grams of water are produced when 5.34x1023
molecules of butane gas is burned?

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

hope this :