The density of naoh solutions in water is given by the expression p = 1.00 + 1.06% where p is the density (g/em> ) and x is the mass fraction naoh. two aqueous naoh feed streams are to be mixed continuously to form a 6 m (moles/liter) naoh product stream. the less concentrated feed stream is 8 mass% naoh; the more concentrated feed stream has a measured density of 1.35 g/cm². if the desired volumetric flowrate of the product stream is 1000 l/hr, determine the volumetric flowrates of each of the feed streams. note for problem 2: this problem can best be worked by first converting all streams and compositions to a mass basis (i. e., mass flow rate, mass fractions). then it becomes a fairly straightforward material balance problem.

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.