Calculate the amount of carbon (in moles) contained in a 0.0265 g pencil “lead.” (Assume that the pencil lead is made of pure graphite, a form of carbon.)

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SORT You are given the mass of carbon and asked to find the amount of carbon in moles. STRATEGIZE Convert between mass and amount (in moles) of an element by using the molar mass of the element. GIVEN: 0.0265 g C FIND: mol C CONCEPTUAL PLAN gC 1 mol C 12.01 g C mol C RELATIONSHIPS USED 12.01 g C = 1 mol C (carbon molar mass)