Question

If 25 ppm of 2,4 D is required to perform a Plant function what amount of 2,4D are required for making 5 liter, 10 liter and 15 liter solutions respectively?
(molecular weight of 2,4-D approx 220)​

Answer 1

Answer:

1 ppm is equal to 1 gm per litre.

25 ppm is equal to 25 gm per litre.

Therefore,

for 5 litres, amount needed is 5 times 25= 125 gm

for 15 litres, amount needed is 15 times 25= 375 gm

Answer 2

125gms, 250gms, 375gms of 2,4-D are required for making 5 liter, 10 liters and 15 liters solution respectively.

• 1 ppm is equal to 1 gm per liter.

∴25 ppm is equal to 25 gms per liter.

Therefore,

• for 5 liters, amount needed is 5 times 25= 125 gms

• for 10 liters, amount needed is 10 times 25= 250 gm s

• for 15 liters, amount needed is 15 times 25= 375 gms