a chemist studies familiar & unfamiliar chemicals, elements. Chemist try to find advanced information about chemicals &try to prove it. They give this to peoples.
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30 liters of a 10 % solution of fertilizer has .1(30) = 3 liters of fertilizer 1 liter of 30% solution has .3 liter of fertilizer 10 liters of 30% solution has 3 liters of fertilizer so, the chemist needs 10 liters of the 30% solution and 20 liters of water to make 30 liters of a 10% solution.
the men have done a lot of work or the men will do a lot of work both of these work fine
6 litres of 50% + 4 litres of 25%
Using the 'Moles' equation as the simplest example. moles = mass(g) / Mr This can be algrebaically rearranged to Mr = mass(g) / moles or mass(g) = moles X Mr So there you go.!!!! That's a chemist using algebra. There are many more chemical equations Here's a few e.g. PV = nRT moles = [conc] X vol(mL)/1000 pH = -log(10)[H^(+)]
i think you work it out