The drug streptomycin is produced on a large scale in the united states. after purification, streptomycin is 40 wt.% in water. for applications, including iv drips, the streptomycin must be diluted and preservative must be added. the diluent stream contains 2 wt.% nacl in water. the preservative stream contains 12 wt.% preservative and 5 wt.% nacl in water. these three streams are mixed together in a mixing tank. the outlet stream is ready for packaging in iv bags. (a) determine the ratio of the stream containing the drug to the outlet stream, given that the drug is 8 wt% in the outlet stream. (b) determine the ratio of the stream containing the preservative to the outlet stream, given that the preservative is 4 w. t% in the outlet stream. (c) determine the ratio of the diluent stream to the outlet stream, given that the drug is 8 wt.% and the preservative is 4 wt.% in the outlet stream. (d) what is the basis in this problem? (e) calculate the mass flow rates of the three inlet streams. (f) what is the wt% of the nacl in the outlet stream?

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give