Gels
Agarose gel: practice problems Work out the agarose mass and the buffer volume. Every answer here is computed by the same tested calculator the rest of the site uses, so a solution can never drift away from the maths.
Problem 1 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 1.5 Casting volume: 25 mL Show the answer and the working Weigh 0.375 g of agarose into 25 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (1.5 / 100) · 25 mL = 0.375 g Buffer: buffer ≈ V = 25 mL Open this in the calculator to change the numbers.
Problem 2 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 2 Casting volume: 250 mL Show the answer and the working Weigh 5 g of agarose into 250 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (2 / 100) · 250 mL = 5 g Buffer: buffer ≈ V = 250 mL Open this in the calculator to change the numbers.
Problem 3 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 3 Casting volume: 50 mL Show the answer and the working Weigh 1.5 g of agarose into 50 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (3 / 100) · 50 mL = 1.5 g Buffer: buffer ≈ V = 50 mL Open this in the calculator to change the numbers.
Problem 4 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 1.5 Casting volume: 100 mL Show the answer and the working Weigh 1.5 g of agarose into 100 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (1.5 / 100) · 100 mL = 1.5 g Buffer: buffer ≈ V = 100 mL Open this in the calculator to change the numbers.
Problem 5 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 4 Casting volume: 50 mL Show the answer and the working Weigh 2 g of agarose into 50 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (4 / 100) · 50 mL = 2 g Buffer: buffer ≈ V = 50 mL Open this in the calculator to change the numbers.
Problem 6 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 5 Casting volume: 300 mL Show the answer and the working Weigh 15 g of agarose into 300 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (5 / 100) · 300 mL = 15 g Buffer: buffer ≈ V = 300 mL Open this in the calculator to change the numbers.
Problem 7 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 1 Casting volume: 30 mL Show the answer and the working Weigh 0.3 g of agarose into 30 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (1 / 100) · 30 mL = 0.3 g Buffer: buffer ≈ V = 30 mL Open this in the calculator to change the numbers.
Problem 8 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 4 Casting volume: 100 mL Show the answer and the working Weigh 4 g of agarose into 100 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (4 / 100) · 100 mL = 4 g Buffer: buffer ≈ V = 100 mL Open this in the calculator to change the numbers.
Problem 9 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 3 Casting volume: 100 mL Show the answer and the working Weigh 3 g of agarose into 100 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (3 / 100) · 100 mL = 3 g Buffer: buffer ≈ V = 100 mL Open this in the calculator to change the numbers.
Problem 10 Agarose gel Work out the agarose mass and the buffer volume.
Gel percentage (%): 1 Casting volume: 50 mL Show the answer and the working Weigh 0.5 g of agarose into 50 mL of buffer.
Weigh-out formula: mass = (% / 100) · V Substitute: mass = (1 / 100) · 50 mL = 0.5 g Buffer: buffer ≈ V = 50 mL Open this in the calculator to change the numbers.
More gels practice
Same topic, different calculation Resolving & stacking gel recipes by acrylamide %.
Stuck on one of them? Open it in the calculator and it shows the same working step by step, with the units checked and the hazards flagged. Free, no account, and it keeps working offline once the page has loaded.
Open the Agarose gel calculator