This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you clearly understand solution concentration concepts in chemistry.
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− Subtraction = Calculate +/- Plus/minus toggles the pos/neg sign of the displayed number mc Memory clear mr Memory recall m- Memory minus m+ Memory plus CE Clear entry AC All clear √x Square root % Percentage π pi = 3.1415926536 x y Exponent R2 Round to 2 decimals (cents)
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In naked-mole-rat societies, the royals do not wield scepters or don crowns. But that’s not to say that their majesty is subtle. The toothy, pruney rodents live in close-knit underground communities ...