1. How many L of a 9.4% (m/v) sample of salt water contain 22.4 g of salt? 2.Mrs. Garner wants to consume at least 0.18 mg of folic acid every day. If one mL of orange juice contains 0.52 mcg of folic acid, how many cups of orange juice does Mrs. Gardner need to drink each day?
3. The recommended dose of ibuprofen for a 27.8 lb child is 0.99 tsp. How many g of ibuprofen is in this volume? (Assume a 399 mg/5mL suspension.)

hi my dude or dudette

it is the minimum amount of material needed to sustain a fission reaction.

critical mass is the minimum amount of fissionable material that must be assembled for a sustained fission reaction to take place. although two to three neutrons are produced for every fission, not all of these neutrons are available for continuing the fission reaction. if the conditions are such that the neutrons are lost at a faster rate than they are formed by fission, the chain reaction will not be self-sustaining.   at the point where the chain reaction can become self-sustaining, this is referred to as critical mass.