An agar gel containing 2.0% agar by mass is to be prepared. The agar powder available is 92% agar by mass (the rest is moisture). What mass of the powder, in grams, is needed to make 450 g of the gel? (two decimals)

Numerical answer type, answer in g, tolerance 0.02.

Answer: 9.78 g

Agar required in the gel

= 0.020 \times 450 = 9.00

g. Powder needed

= 9.00/0.92 = 9.78