2 bottles
If the scoops are the same size, 50 with 2 scoops and 100 with 4 scoops have the same concentration. 2/50 = 0.04 4/100 = 0.04 but 150 with 5 scoops has less concentration 5/150 = 0.0333
A gallon of water per person per day
No, sugar is heavier than salt.
1 gallon. Sugar is soluble in water and should not significantly change the volume
Should the gas in question be water vapour then there is one gallon of water. (In gaseous form) Should the gas be anything else then it is possible that there may be some contamination. How much of that is water depends on the amount of contamination.
three seconds
A gallon of water per person per day
Change 10% of your water (so 1 gallon of water if you have a 10 gallon tank) per week. Change at least 25% of your water monthly.
A gallon of water per person per day
75 gallon
One ounce of UAN 32% Fertilizer to the gallon
fill the 5 gallon jug with water then pour the water into the 3 gallon jug until its full then u will have 2 gallons in the 5 gallon jug. then if the jugs both have the same circumference u can just make the water in both jugs level then u will have 2 gallons of water in each jug. pour the water from the 3 gallon jug into the 5 gallon jug. and u should know that 2+2=4 :)